diff --git a/etc/oslo-config-generator/manila.conf b/etc/oslo-config-generator/manila.conf
index 7eee8f8e43..8819f6f8e4 100644
--- a/etc/oslo-config-generator/manila.conf
+++ b/etc/oslo-config-generator/manila.conf
@@ -3,7 +3,6 @@ output_file = etc/manila/manila.conf.sample
 namespace = manila
 namespace = oslo.concurrency
 namespace = oslo.db
-namespace = oslo.db.concurrency
 namespace = oslo.log
 namespace = oslo.messaging
 namespace = oslo.middleware