diff --git a/src/Template/Bake/config/snapshot.ctp b/src/Template/Bake/config/snapshot.ctp
index 6bcfbdc3..df62a5e1 100644
--- a/src/Template/Bake/config/snapshot.ctp
+++ b/src/Template/Bake/config/snapshot.ctp
@@ -15,11 +15,16 @@
 
 use Cake\Database\Schema\Table;
 
-$wantedOptions = array_flip(['length', 'limit', 'default', 'unsigned', 'null', 'comment', 'autoIncrement', 'precision']);
+$wantedOptions = array_flip(['length', 'limit', 'default', 'signed', 'null', 'comment', 'autoIncrement', 'precision']);
 $tableMethod = $this->Migration->tableMethod($action);
 $columnMethod = $this->Migration->columnMethod($action);
 $indexMethod = $this->Migration->indexMethod($action);
 $constraints = $foreignKeys = $dropForeignKeys = [];
+$hasUnsignedPk = $this->Migration->hasUnsignedPrimaryKey($tables);
+
+if ($autoId && $hasUnsignedPk) {
+    $autoId = false;
+}
 %>
 <?php
 use Migrations\AbstractMigration;
@@ -59,6 +64,9 @@ class <%= $name %> extends AbstractMigration
                 if (empty($columnOptions['precision'])) {
                     unset($columnOptions['precision']);
                 }
+                if (isset($columnOptions['signed']) && $columnOptions['signed'] === true) {
+                    unset($columnOptions['signed']);
+                }
                 echo $this->Migration->stringifyList($columnOptions, ['indent' => 4]);
             %>])
             <%- endforeach;
@@ -76,6 +84,9 @@ class <%= $name %> extends AbstractMigration
                 if (empty($columnOptions['autoIncrement'])) {
                     unset($columnOptions['autoIncrement']);
                 }
+                if (isset($columnOptions['signed']) && $columnOptions['signed'] === true) {
+                    unset($columnOptions['signed']);
+                }
                 if (empty($columnOptions['precision'])) {
                     unset($columnOptions['precision']);
                 } else {
diff --git a/src/View/Helper/MigrationHelper.php b/src/View/Helper/MigrationHelper.php
index 5020d972..2ce07fb2 100644
--- a/src/View/Helper/MigrationHelper.php
+++ b/src/View/Helper/MigrationHelper.php
@@ -217,6 +217,31 @@ public function primaryKeys($table)
         return $primaryKeys;
     }
 
+    /**
+     * Returns whether the $tables list given as arguments contains primary keys
+     * unsigned.
+     *
+     * @param array $tables List of tables to check
+     * @return bool
+     */
+    public function hasUnsignedPrimaryKey($tables)
+    {
+        foreach ($tables as $table) {
+            $collection = $this->config('collection');
+            $tableSchema = $collection->describe($table);
+            $tablePrimaryKeys = $tableSchema->primaryKey();
+
+            foreach ($tablePrimaryKeys as $primaryKey) {
+                $column = $tableSchema->column($primaryKey);
+                if (isset($column['unsigned']) && $column['unsigned'] === true) {
+                    return true;
+                }
+            }
+        }
+
+        return false;
+    }
+
     /**
      * Returns the primary key columns name for a given table
      *
diff --git a/tests/Fixture/ArticlesFixture.php b/tests/Fixture/ArticlesFixture.php
index 4ceb37d6..374f6716 100644
--- a/tests/Fixture/ArticlesFixture.php
+++ b/tests/Fixture/ArticlesFixture.php
@@ -32,6 +32,7 @@ class ArticlesFixture extends TestFixture
         'title' => ['type' => 'string', 'null' => true, 'length' => 255, 'comment' => 'Article title'],
         'category_id' => ['type' => 'integer', 'length' => 11],
         'product_id' => ['type' => 'integer', 'length' => 11],
+        'counter' => ['type' => 'integer', 'length' => 11, 'unsigned' => true],
         'created' => ['type' => 'timestamp', 'null' => true, 'default' => null],
         'modified' => ['type' => 'timestamp', 'null' => true, 'default' => null],
         '_indexes' => [
diff --git a/tests/TestCase/Shell/Task/MigrationSnapshotTaskTest.php b/tests/TestCase/Shell/Task/MigrationSnapshotTaskTest.php
index 0a7f7b30..0c456db5 100644
--- a/tests/TestCase/Shell/Task/MigrationSnapshotTaskTest.php
+++ b/tests/TestCase/Shell/Task/MigrationSnapshotTaskTest.php
@@ -14,6 +14,7 @@
 use Bake\Shell\Task\BakeTemplateTask;
 use Cake\Core\Configure;
 use Cake\Core\Plugin;
+use Cake\Database\Schema\Table;
 use Cake\Datasource\ConnectionManager;
 use Cake\TestSuite\StringCompareTrait;
 use Cake\TestSuite\TestCase;
@@ -147,6 +148,19 @@ public function testAutoIdDisabledSnapshot()
      */
     public function testPluginBlog()
     {
+        $db = ConnectionManager::get('test');
+        $collection = $db->schemaCollection();
+        $table = new Table('parts', [
+            'id' => ['type' => 'integer', 'unsigned' => true],
+            'name' => ['type' => 'string', 'length' => 255],
+            'number' => ['type' => 'integer', 'null' => true, 'length' => 10, 'unsigned' => true]
+        ]);
+        $table->addConstraint('primary', ['type' => 'primary', 'columns' => ['id']]);
+        $sql = $table->createSql($db);
+        foreach ($sql as $stmt) {
+            $db->execute($stmt);
+        }
+
         $task = $this->getTaskMock(['in', 'err', 'dispatchShell', '_stop']);
         $task->params['require-table'] = false;
         $task->params['connection'] = 'test';
@@ -157,6 +171,11 @@ public function testPluginBlog()
         $result = $task->bake($bakeName);
 
         $this->assertCorrectSnapshot($bakeName, $result);
+
+        $sql = $table->dropSql($db);
+        foreach ($sql as $stmt) {
+            $db->execute($stmt);
+        }
     }
 
     /**
diff --git a/tests/comparisons/Migration/pgsql/test_auto_id_disabled_snapshot_pgsql.php b/tests/comparisons/Migration/pgsql/test_auto_id_disabled_snapshot_pgsql.php
index 790021e3..43156f73 100644
--- a/tests/comparisons/Migration/pgsql/test_auto_id_disabled_snapshot_pgsql.php
+++ b/tests/comparisons/Migration/pgsql/test_auto_id_disabled_snapshot_pgsql.php
@@ -33,6 +33,11 @@ public function up()
                 'limit' => 10,
                 'null' => true,
             ])
+            ->addColumn('counter', 'integer', [
+                'default' => null,
+                'limit' => 10,
+                'null' => true,
+            ])
             ->addColumn('created', 'timestamp', [
                 'default' => null,
                 'limit' => null,
diff --git a/tests/comparisons/Migration/pgsql/test_not_empty_snapshot_pgsql.php b/tests/comparisons/Migration/pgsql/test_not_empty_snapshot_pgsql.php
index 949f78f6..ad28767c 100644
--- a/tests/comparisons/Migration/pgsql/test_not_empty_snapshot_pgsql.php
+++ b/tests/comparisons/Migration/pgsql/test_not_empty_snapshot_pgsql.php
@@ -23,6 +23,11 @@ public function up()
                 'limit' => 10,
                 'null' => true,
             ])
+            ->addColumn('counter', 'integer', [
+                'default' => null,
+                'limit' => 10,
+                'null' => true,
+            ])
             ->addColumn('created', 'timestamp', [
                 'default' => null,
                 'limit' => null,
diff --git a/tests/comparisons/Migration/pgsql/test_plugin_blog_pgsql.php b/tests/comparisons/Migration/pgsql/test_plugin_blog_pgsql.php
index 6eaae086..110bcc5a 100644
--- a/tests/comparisons/Migration/pgsql/test_plugin_blog_pgsql.php
+++ b/tests/comparisons/Migration/pgsql/test_plugin_blog_pgsql.php
@@ -23,6 +23,11 @@ public function up()
                 'limit' => 10,
                 'null' => true,
             ])
+            ->addColumn('counter', 'integer', [
+                'default' => null,
+                'limit' => 10,
+                'null' => true,
+            ])
             ->addColumn('created', 'timestamp', [
                 'default' => null,
                 'limit' => null,
@@ -85,6 +90,20 @@ public function up()
             )
             ->create();
 
+        $table = $this->table('parts');
+        $table
+            ->addColumn('name', 'string', [
+                'default' => null,
+                'limit' => 255,
+                'null' => true,
+            ])
+            ->addColumn('number', 'integer', [
+                'default' => null,
+                'limit' => 10,
+                'null' => true,
+            ])
+            ->create();
+
         $this->table('articles')
             ->addForeignKey(
                 'category_id',
@@ -120,5 +139,6 @@ public function down()
 
         $this->dropTable('articles');
         $this->dropTable('categories');
+        $this->dropTable('parts');
     }
 }
diff --git a/tests/comparisons/Migration/sqlite/test_auto_id_disabled_snapshot_sqlite.php b/tests/comparisons/Migration/sqlite/test_auto_id_disabled_snapshot_sqlite.php
index 91a777e9..b5db2b86 100644
--- a/tests/comparisons/Migration/sqlite/test_auto_id_disabled_snapshot_sqlite.php
+++ b/tests/comparisons/Migration/sqlite/test_auto_id_disabled_snapshot_sqlite.php
@@ -32,6 +32,12 @@ public function up()
                 'limit' => 11,
                 'null' => true,
             ])
+            ->addColumn('counter', 'integer', [
+                'default' => null,
+                'limit' => 11,
+                'null' => true,
+                'signed' => false,
+            ])
             ->addColumn('created', 'timestamp', [
                 'default' => null,
                 'limit' => null,
diff --git a/tests/comparisons/Migration/sqlite/test_not_empty_snapshot_sqlite.php b/tests/comparisons/Migration/sqlite/test_not_empty_snapshot_sqlite.php
index 7829d2bb..ec23e455 100644
--- a/tests/comparisons/Migration/sqlite/test_not_empty_snapshot_sqlite.php
+++ b/tests/comparisons/Migration/sqlite/test_not_empty_snapshot_sqlite.php
@@ -22,6 +22,12 @@ public function up()
                 'limit' => 11,
                 'null' => true,
             ])
+            ->addColumn('counter', 'integer', [
+                'default' => null,
+                'limit' => 11,
+                'null' => true,
+                'signed' => false,
+            ])
             ->addColumn('created', 'timestamp', [
                 'default' => null,
                 'limit' => null,
diff --git a/tests/comparisons/Migration/sqlite/test_plugin_blog_sqlite.php b/tests/comparisons/Migration/sqlite/test_plugin_blog_sqlite.php
index f8cadf53..cad04594 100644
--- a/tests/comparisons/Migration/sqlite/test_plugin_blog_sqlite.php
+++ b/tests/comparisons/Migration/sqlite/test_plugin_blog_sqlite.php
@@ -22,6 +22,12 @@ public function up()
                 'limit' => 11,
                 'null' => true,
             ])
+            ->addColumn('counter', 'integer', [
+                'default' => null,
+                'limit' => 11,
+                'null' => true,
+                'signed' => false,
+            ])
             ->addColumn('created', 'timestamp', [
                 'default' => null,
                 'limit' => null,
@@ -84,6 +90,21 @@ public function up()
             )
             ->create();
 
+        $table = $this->table('parts');
+        $table
+            ->addColumn('name', 'string', [
+                'default' => null,
+                'limit' => 255,
+                'null' => true,
+            ])
+            ->addColumn('number', 'integer', [
+                'default' => null,
+                'limit' => 10,
+                'null' => true,
+                'signed' => false,
+            ])
+            ->create();
+
         $this->table('articles')
             ->addForeignKey(
                 'category_id',
@@ -119,5 +140,6 @@ public function down()
 
         $this->dropTable('articles');
         $this->dropTable('categories');
+        $this->dropTable('parts');
     }
 }
diff --git a/tests/comparisons/Migration/test_auto_id_disabled_snapshot.php b/tests/comparisons/Migration/test_auto_id_disabled_snapshot.php
index 4d696224..b822fc33 100644
--- a/tests/comparisons/Migration/test_auto_id_disabled_snapshot.php
+++ b/tests/comparisons/Migration/test_auto_id_disabled_snapshot.php
@@ -33,6 +33,12 @@ public function up()
                 'limit' => 11,
                 'null' => true,
             ])
+            ->addColumn('counter', 'integer', [
+                'default' => null,
+                'limit' => 11,
+                'null' => true,
+                'signed' => false,
+            ])
             ->addColumn('created', 'timestamp', [
                 'default' => null,
                 'limit' => null,
diff --git a/tests/comparisons/Migration/test_not_empty_snapshot.php b/tests/comparisons/Migration/test_not_empty_snapshot.php
index 831aa176..a7eef355 100644
--- a/tests/comparisons/Migration/test_not_empty_snapshot.php
+++ b/tests/comparisons/Migration/test_not_empty_snapshot.php
@@ -23,6 +23,12 @@ public function up()
                 'limit' => 11,
                 'null' => true,
             ])
+            ->addColumn('counter', 'integer', [
+                'default' => null,
+                'limit' => 11,
+                'null' => true,
+                'signed' => false,
+            ])
             ->addColumn('created', 'timestamp', [
                 'default' => null,
                 'limit' => null,
diff --git a/tests/comparisons/Migration/test_plugin_blog.php b/tests/comparisons/Migration/test_plugin_blog.php
index 4d165f16..1027e3a5 100644
--- a/tests/comparisons/Migration/test_plugin_blog.php
+++ b/tests/comparisons/Migration/test_plugin_blog.php
@@ -3,10 +3,20 @@
 
 class TestPluginBlog extends AbstractMigration
 {
+
+    public $autoId = false;
+
     public function up()
     {
         $table = $this->table('articles');
         $table
+            ->addColumn('id', 'integer', [
+                'autoIncrement' => true,
+                'default' => null,
+                'limit' => 11,
+                'null' => false,
+            ])
+            ->addPrimaryKey(['id'])
             ->addColumn('title', 'string', [
                 'comment' => 'Article title',
                 'default' => null,
@@ -23,6 +33,12 @@ public function up()
                 'limit' => 11,
                 'null' => true,
             ])
+            ->addColumn('counter', 'integer', [
+                'default' => null,
+                'limit' => 11,
+                'null' => true,
+                'signed' => false,
+            ])
             ->addColumn('created', 'timestamp', [
                 'default' => null,
                 'limit' => null,
@@ -52,6 +68,13 @@ public function up()
 
         $table = $this->table('categories');
         $table
+            ->addColumn('id', 'integer', [
+                'autoIncrement' => true,
+                'default' => null,
+                'limit' => 11,
+                'null' => false,
+            ])
+            ->addPrimaryKey(['id'])
             ->addColumn('parent_id', 'integer', [
                 'default' => null,
                 'limit' => 11,
@@ -85,6 +108,29 @@ public function up()
             )
             ->create();
 
+        $table = $this->table('parts');
+        $table
+            ->addColumn('id', 'integer', [
+                'autoIncrement' => true,
+                'default' => null,
+                'limit' => 10,
+                'null' => false,
+                'signed' => false,
+            ])
+            ->addPrimaryKey(['id'])
+            ->addColumn('name', 'string', [
+                'default' => null,
+                'limit' => 255,
+                'null' => true,
+            ])
+            ->addColumn('number', 'integer', [
+                'default' => null,
+                'limit' => 10,
+                'null' => true,
+                'signed' => false,
+            ])
+            ->create();
+
         $this->table('articles')
             ->addForeignKey(
                 'category_id',
@@ -120,5 +166,6 @@ public function down()
 
         $this->dropTable('articles');
         $this->dropTable('categories');
+        $this->dropTable('parts');
     }
 }
diff --git a/tests/test_app/Plugin/TestBlog/src/Model/Table/PartsTable.php b/tests/test_app/Plugin/TestBlog/src/Model/Table/PartsTable.php
new file mode 100644
index 00000000..ee25ffd7
--- /dev/null
+++ b/tests/test_app/Plugin/TestBlog/src/Model/Table/PartsTable.php
@@ -0,0 +1,12 @@
+<?php
+namespace TestBlog\Model\Table;
+
+use Cake\ORM\Table;
+
+/**
+ * Articles Model
+ *
+ */
+class PartsTable extends Table
+{
+}