diff --git a/safesite/views.py b/safesite/views.py
index 292d6617..393be239 100644
--- a/safesite/views.py
+++ b/safesite/views.py
@@ -934,7 +934,8 @@ def menutree(req):
         bgroups = user.userg.all()
         x = []
         for i in bgroups:
-            x.extend(i.menulist)
+            if i.menulist:
+                x.extend(i.menulist)
         menus = Menu.objects.exclude(menuid__in=[11, 9]).filter(menuid__in=list(set(x)), deletemark=1,type=1).order_by(
             'sortnum').values('menuid', 'menucode', 'parentid', 'url', 'menuname', 'icon').distinct()
     return HttpResponse(json.dumps(list(menus)), content_type="application/json")