diff --git a/phpgwapi/inc/class.mime_magic.inc.php b/phpgwapi/inc/class.mime_magic.inc.php
index ac2f17807e..3f2028ff3a 100644
--- a/phpgwapi/inc/class.mime_magic.inc.php
+++ b/phpgwapi/inc/class.mime_magic.inc.php
@@ -99,7 +99,7 @@ class mime_magic
 	 */
 	public static function filename2mine($filename)
 	{
-		return $this->filename2mime($filename);
+		return self::filename2mime($filename);
 	}
 
 	/**