diff --git a/mayan/apps/acls/managers.py b/mayan/apps/acls/managers.py
index 2bc9f457ff..0cb07b5987 100644
--- a/mayan/apps/acls/managers.py
+++ b/mayan/apps/acls/managers.py
@@ -239,6 +239,9 @@ class AccessControlListManager(models.Manager):
             )
 
     def restrict_queryset(self, permission, queryset, user):
+        if not user.is_authenticated():
+            return queryset.none()
+
         # Check directly granted permission via a role
         try:
             Permission.check_user_permissions(