1 files changed, 2 insertions, 1 deletions
diff --git a/models.py b/models.py
index ae04fb8..15f378a 100644
--- a/models.py
+++ b/models.py
@@ -31,6 +31,7 @@ class SlugModel(models.Model):
 
         super(SlugModel, self).save()
 
+
     class Meta:
         abstract = True
 
@@ -179,7 +180,7 @@ class CourseManager(Manager):
                    .prefetch_related("rooms")
         elif isinstance(obj, Room):
             qs = qs.filter(rooms__in=(obj,), **criteria) \
-                   .prefetch_related("groups", "rooms")
+                   .prefetch_related("groups")
         else:
             raise(TypeError, "obj must be a Group or a Room")