diff --git a/etc/oslo-config-generator/glance-api.conf b/etc/oslo-config-generator/glance-api.conf
index bafa606276..a92aca1788 100644
--- a/etc/oslo-config-generator/glance-api.conf
+++ b/etc/oslo-config-generator/glance-api.conf
@@ -4,6 +4,7 @@ output_file = etc/glance-api.conf.sample
 namespace = castellan.config
 namespace = glance.api
 namespace = glance.store
+namespace = os_brick
 namespace = glance.multi_store
 namespace = oslo.concurrency
 namespace = oslo.messaging
diff --git a/etc/oslo-config-generator/glance-cache.conf b/etc/oslo-config-generator/glance-cache.conf
index 9bc1ff6b8d..b520e8d9c1 100644
--- a/etc/oslo-config-generator/glance-cache.conf
+++ b/etc/oslo-config-generator/glance-cache.conf
@@ -3,5 +3,6 @@ wrap_width = 80
 output_file = etc/glance-cache.conf.sample
 namespace = glance.cache
 namespace = glance.store
+namespace = os_brick
 namespace = oslo.log
 namespace = oslo.policy
diff --git a/etc/oslo-config-generator/glance-scrubber.conf b/etc/oslo-config-generator/glance-scrubber.conf
index 700f1ecaca..84d8abf368 100644
--- a/etc/oslo-config-generator/glance-scrubber.conf
+++ b/etc/oslo-config-generator/glance-scrubber.conf
@@ -3,6 +3,7 @@ wrap_width = 80
 output_file = etc/glance-scrubber.conf.sample
 namespace = glance.scrubber
 namespace = glance.store
+namespace = os_brick
 namespace = oslo.concurrency
 namespace = oslo.db
 namespace = oslo.log