diff --git a/st2auth/st2auth/backends/__init__.py b/st2auth/st2auth/backends/__init__.py
index c84d75e389..01ae978cc5 100644
--- a/st2auth/st2auth/backends/__init__.py
+++ b/st2auth/st2auth/backends/__init__.py
@@ -27,7 +27,8 @@
 
 BACKEND_MODULES = {
     'flat_file': 'st2auth.backends.flat_file',
-    'mongodb': 'st2auth.backends.mongodb'
+    'mongodb': 'st2auth.backends.mongodb',
+    'keystone': 'st2auth.backends.keystone'
 }
 
 VALID_BACKEND_NAMES = BACKEND_MODULES.keys()