diff --git a/program/views.py b/program/views.py
index 230a72e63b5b1152b3ac3a055ddf2be7a33dd900..a1e0163bc5a5959c596b51f50f4b926e01a00954 100644
--- a/program/views.py
+++ b/program/views.py
@@ -732,7 +732,7 @@ class APITimeSlotViewSet(
     viewsets.GenericViewSet,
 ):
     ROUTE_FILTER_LOOKUPS = {
-        "show_pk": "show",
+        "show_pk": "schedule__show",
         "schedule_pk": "schedule",
     }