diff --git a/django/db/models/base.py b/django/db/models/base.py
index bdae7eccc2..f348f8d280 100644
--- a/django/db/models/base.py
+++ b/django/db/models/base.py
@@ -160,7 +160,7 @@ class Model(object):
     _prepare = classmethod(_prepare)
 
     def save(self):
-        dispatcher.send(signal=signals.pre_save, sender=self.__class__, instance=self)
+        dispatcher.send(signal=signals.pre_save, sender=self.__class__, instance=self, signal_name='pre_save')
 
         non_pks = [f for f in self._meta.fields if not f.primary_key]
         cursor = connection.cursor()
diff --git a/django/db/models/query.py b/django/db/models/query.py
index 0b85c3f515..883f013d7a 100644
--- a/django/db/models/query.py
+++ b/django/db/models/query.py
@@ -921,7 +921,7 @@ def delete_objects(seen_objs):
 
         # Pre notify all instances to be deleted
         for pk_val, instance in seen_objs[cls]:
-            dispatcher.send(signal=signals.pre_delete, sender=cls, instance=instance)
+            dispatcher.send(signal=signals.pre_delete, sender=cls, instance=instance, signal_name='pre_delete')
 
         pk_list = [pk for pk,instance in seen_objs[cls]]
         for related in cls._meta.get_all_related_many_to_many_objects():