1 files changed, 2 insertions, 1 deletions
diff --git a/models.py b/models.py
index 8ff9359..5d2fe17 100644
--- a/models.py
+++ b/models.py
@@ -198,7 +198,8 @@ class CourseManager(Manager):
             qs = qs.filter(groups__in=Group.objects.get_parents(obj),
                            **criteria).prefetch_related("rooms")
         elif isinstance(obj, Room):
-            qs = qs.filter(rooms__in=(obj,), **criteria)
+            qs = qs.filter(rooms=obj, **criteria).prefetch_related("rooms",
+                                                                   "groups")
         else:
             raise(TypeError, "obj must be a Group or a Room")