diff --git a/lib/fog/openstack/auth/name.rb b/lib/fog/openstack/auth/name.rb
index 638f44545..1a7a2b0bb 100644
--- a/lib/fog/openstack/auth/name.rb
+++ b/lib/fog/openstack/auth/name.rb
@@ -30,7 +30,7 @@ def identity
         end
 
         def to_h(var)
-          {var => send(var)}
+          {var => send(var).to_s}
         end
       end