diff --git a/libraries/OutputBuffering.class.php b/libraries/OutputBuffering.class.php
index 1ef764313d..863486d45b 100644
--- a/libraries/OutputBuffering.class.php
+++ b/libraries/OutputBuffering.class.php
@@ -94,7 +94,7 @@ class PMA_OutputBuffering
             if (! defined('TESTSUITE')) {
                 header('X-ob_mode: ' . $this->_mode);
             }
-            register_shutdown_function('PMA_OutputBuffering::stop');
+            register_shutdown_function(array('PMA_OutputBuffering', 'stop'));
             $this->_on = true;
         }
     }