diff --git a/pluginfile.php b/pluginfile.php
index 8ace6bd0f88..8cc087786dd 100644
--- a/pluginfile.php
+++ b/pluginfile.php
@@ -24,9 +24,8 @@
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-// disable moodle specific debug messages and any errors in output
-//define('NO_DEBUG_DISPLAY', true);
-//TODO: uncomment this once the file api stabilises a bit more
+// Disable moodle specific debug messages and any errors in output.
+define('NO_DEBUG_DISPLAY', true);
 
 require_once('config.php');
 require_once('lib/filelib.php');