diff --git a/ietf/meeting/models.py b/ietf/meeting/models.py
index 145a22ad7..6a63c36e3 100644
--- a/ietf/meeting/models.py
+++ b/ietf/meeting/models.py
@@ -775,7 +775,7 @@ class SchedTimeSessAssignment(models.Model):
 
     @property
     def room_name(self):
-        return self.timeslot.location.name
+        return self.timeslot.location.name if self.timeslot and self.timeslot.location else None
 
     @property
     def acronym(self):