diff --git a/program/serializers.py b/program/serializers.py
index 612324834b824908ef60db8578c1b5435ced3496..44690f1c6fbf79b80ef0279252e08f59bed9bde4 100644
--- a/program/serializers.py
+++ b/program/serializers.py
@@ -1313,7 +1313,7 @@ class PlayoutProgramEntrySerializer(BasicProgramEntrySerializer):
             model = Note
             fields = ["id", "title"]
 
-    timeslot = TimeSlotSerializer()
+    timeslot = TimeSlotSerializer(allow_null=True)
     show = PlayoutShowSerializer()
     episode = PlayoutEpisodeSerializer(allow_null=True, source="timeslot.note")
     schedule = PlayoutScheduleSerializer(allow_null=True, source="timeslot.schedule")