diff --git a/libraries/Gelato/Minify/MinifyHTML.php b/libraries/Gelato/Minify/MinifyHTML.php
index ba0a6af..57d232b 100644
--- a/libraries/Gelato/Minify/MinifyHTML.php
+++ b/libraries/Gelato/Minify/MinifyHTML.php
@@ -30,7 +30,7 @@ class MinifyHTML
     public static function process($html)
     {
         // Remove HTML comments (not containing IE conditional comments).
-        $html = preg_replace_callback('/<!--([\\s\\S]*?)-->/', 'self::_comments', $html);
+        $html = preg_replace_callback('/<!--([\\s\\S]*?)-->/', 'MinifyHTML::_comments', $html);
 
         // Trim each line.
         $html = preg_replace('/^\\s+|\\s+$/m', '', $html);