diff --git a/v1/list/views.py b/v1/list/views.py
index a5692e7..08b480d 100644
--- a/v1/list/views.py
+++ b/v1/list/views.py
@@ -17,6 +17,7 @@ class GroceryListViewSet(viewsets.ModelViewSet):
     This viewset automatically provides `list`, `create`, `retrieve`,
     `update` and `destroy` actions.
     """
+    lookup_field = 'slug'
     serializer_class = GroceryListSerializer
     permission_classes = (IsListOwner,)