diff --git a/inc/parser/renderer.php b/inc/parser/renderer.php
index 7002fd0cb938418f35a5a249b6f86287a957d449..f050e6eac9ed1276189a6ba0874e9f5bed6ef35f 100644
--- a/inc/parser/renderer.php
+++ b/inc/parser/renderer.php
@@ -75,7 +75,7 @@ class Doku_Renderer extends DokuWiki_Plugin {
       foreach ( $instructions as $instruction ) {
         // execute the callback against ourself
         if (method_exists($this,$instruction[0])) {
-          call_user_func_array(array($this, $instruction[0]),$instruction[1]);
+          call_user_func_array(array($this, $instruction[0]), $instruction[1] ? $instruction[1] : array());
         }
       }
     }