diff --git a/src/QueryBuilder.php b/src/QueryBuilder.php
index 9639964..afb5d80 100644
--- a/src/QueryBuilder.php
+++ b/src/QueryBuilder.php
@@ -131,10 +131,10 @@ public function query($sql, $params = [], $page = null, $perPage = 20)
     {
         if (!is_null($page)) {
             $page   = (int) $page;
-            if ($page < 0) {
-                $page = 0;
+            if ($page < 1) {
+                $page = 1;
             }
-            $offset = $perPage * $page;
+            $offset = $perPage * ($page - 1);
             $limit  = $perPage;
 
             $sql .= " LIMIT {$limit} OFFSET {$offset}";
@@ -229,7 +229,6 @@ protected function generateCallback()
                     implode(' : ', $stmt->errorInfo())
                 );
             }
-
             if ('select' !== strtolower(substr($sql, 0, 6))) {
                 return $result;
             }