diff --git a/config-generator.conf b/config-generator.conf
index e6e8c910c6..aa046c9391 100644
--- a/config-generator.conf
+++ b/config-generator.conf
@@ -13,6 +13,7 @@ namespace = heat.api.aws.ec2token
 namespace = keystonemiddleware.auth_token
 namespace = oslo.messaging
 namespace = oslo.middleware
+namespace = oslo.cache
 namespace = oslo.log
 namespace = oslo.policy
 namespace = oslo.service.service