diff --git a/include/staff/settings-system.inc.php b/include/staff/settings-system.inc.php
index 0c985ade9ea19cb71dcf172e8fb2c8b7a5ecc180..e9a261a213de2326fa45359c5f204f9387956d35 100644
--- a/include/staff/settings-system.inc.php
+++ b/include/staff/settings-system.inc.php
@@ -274,7 +274,9 @@ $gmtime = Misc::gmtime();
 </p>
 </form>
 <script type="text/javascript">
-$('#secondary_langs').sortable({
-    cursor: 'move'
+$(function() {
+    $('#secondary_langs').sortable({
+        cursor: 'move'
+    });
 });
 </script>