diff --git a/sahara/service/castellan/sahara_key_manager.py b/sahara/service/castellan/sahara_key_manager.py
index 8e042bf0d0..85bd84f69e 100644
--- a/sahara/service/castellan/sahara_key_manager.py
+++ b/sahara/service/castellan/sahara_key_manager.py
@@ -74,3 +74,10 @@ class SaharaKeyManager(km.KeyManager):
         perform any external actions. therefore, it won't change anything.
         """
         pass
+
+    def list(self, *args, **kwargs):
+        """list all managed keys
+
+        current implementation of the key manager does not utilize this
+        """
+        pass