diff --git a/lib/accesslib.php b/lib/accesslib.php
index 63c588e36b8..fa9e0aa3587 100755
--- a/lib/accesslib.php
+++ b/lib/accesslib.php
@@ -4469,7 +4469,7 @@ function get_users_by_capability($context, $capability, $fields='', $sort='',
             $viewallgroupsusers = get_users_by_capability($context,
                     'moodle/site:accessallgroups', 'u.id, u.id', '', '', '', '', $exceptions);
             $wherecond['groups'] =  '('. $grouptest . ' OR ra.userid IN (' .
-                                    implode(',', array_keys($viewallgroupsusers)) . ')))';
+                                    implode(',', array_keys($viewallgroupsusers)) . '))';
         } else {
             $wherecond['groups'] =  '(' . $grouptest .')';
         }