diff --git a/src/Generators/HTML.php b/src/Generators/HTML.php
index b8529746c9..0939255e4f 100644
--- a/src/Generators/HTML.php
+++ b/src/Generators/HTML.php
@@ -106,12 +106,7 @@ public function generate()
         }
 
         ob_start();
-        foreach ($this->docFiles as $file) {
-            $doc = new DOMDocument();
-            $doc->load($file);
-            $documentation = $doc->getElementsByTagName('documentation')->item(0);
-            $this->processSniff($documentation);
-        }
+        parent::generate();
 
         $content = ob_get_contents();
         ob_end_clean();
diff --git a/src/Generators/Markdown.php b/src/Generators/Markdown.php
index 28fa32c84d..c4b89761d8 100644
--- a/src/Generators/Markdown.php
+++ b/src/Generators/Markdown.php
@@ -9,7 +9,6 @@
 
 namespace PHP_CodeSniffer\Generators;
 
-use DOMDocument;
 use DOMNode;
 use PHP_CodeSniffer\Config;
 
@@ -30,12 +29,7 @@ public function generate()
         }
 
         ob_start();
-        foreach ($this->docFiles as $file) {
-            $doc = new DOMDocument();
-            $doc->load($file);
-            $documentation = $doc->getElementsByTagName('documentation')->item(0);
-            $this->processSniff($documentation);
-        }
+        parent::generate();
 
         $content = ob_get_contents();
         ob_end_clean();