diff --git a/lib/moodlelib.php b/lib/moodlelib.php
index f79130d458d..8a3097cea28 100644
--- a/lib/moodlelib.php
+++ b/lib/moodlelib.php
@@ -2241,8 +2241,9 @@ function isguest($userid=0) {
  * @return bool
  */
 function isediting($courseid, $user=NULL) {
-    if (!$user){
-        global $USER;
+    global $USER;
+    if (!$user) {
+        $user = $USER;
     }
     if (empty($user->editing)) {
         return false;