diff --git a/endpoints/notificationmethod.py b/endpoints/notificationmethod.py
index 589ebd06d..78104ea2e 100644
--- a/endpoints/notificationmethod.py
+++ b/endpoints/notificationmethod.py
@@ -211,7 +211,7 @@ class FlowdockMethod(NotificationMethod):
     if not token:
       return
 
-    owner = model.get_user(notification.repository.namespace_user.username)
+    owner = model.get_user_or_org(notification.repository.namespace_user.username)
     if not owner:
       # Something went wrong.
       return
@@ -267,7 +267,7 @@ class HipchatMethod(NotificationMethod):
     if not token or not room_id:
       return
 
-    owner = model.get_user(notification.repository.namespace_user.username)
+    owner = model.get_user_or_org(notification.repository.namespace_user.username)
     if not owner:
       # Something went wrong.
       return
@@ -334,7 +334,7 @@ class SlackMethod(NotificationMethod):
     if not token or not subdomain:
       return
 
-    owner = model.get_user(notification.repository.namespace_user.username)
+    owner = model.get_user_or_org(notification.repository.namespace_user.username)
     if not owner:
       # Something went wrong.
       return