diff --git a/mod/forum/view.php b/mod/forum/view.php
index 605feb77e98..6290b363be8 100644
--- a/mod/forum/view.php
+++ b/mod/forum/view.php
@@ -101,7 +101,7 @@
     if ($groupmode == VISIBLEGROUPS or ($groupmode and isteacheredit($course->id))) {
         if ($groups = get_records_menu("groups", "courseid", $course->id, "name ASC", "id,name")) {
             echo '<td>';
-            print_group_menu($groups, $groupmode, $currentgroup, "view.php?id=$cm->id&group=");
+            print_group_menu($groups, $groupmode, $currentgroup, "view.php?id=$cm->id");
             echo '</td>';
         }
     }