diff --git a/program/views.py b/program/views.py
index 8d909b9123406a780e41c86b5df1a83d5ee6af95..7c2e5960cf167ad539cc535809e0aa484380bf9f 100644
--- a/program/views.py
+++ b/program/views.py
@@ -729,7 +729,7 @@ class APITimeSlotViewSet(
     def update(self, request, *args, **kwargs):
         show_pk = get_values(self.kwargs, "show_pk")
 
-        if not request.user.is_superuser and show_pk not in request.user.shows.values_lis(
+        if not request.user.is_superuser and show_pk not in request.user.shows.values_list(
             "id", flat=True
         ):
             return Response(status=status.HTTP_401_UNAUTHORIZED)