diff --git a/osc/babysitter.py b/osc/babysitter.py
index f33a899d..7504c592 100644
--- a/osc/babysitter.py
+++ b/osc/babysitter.py
@@ -40,7 +40,7 @@ try:
     from keyring.errors import KeyringLocked
 except ImportError:
     # python-keyring is not installed
-    class KeyringLocked:
+    class KeyringLocked(Exception):
         pass