diff --git a/doc/requirements.txt b/doc/requirements.txt
index a6bb0d58733d..c65578005c33 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -12,3 +12,6 @@ reno>=2.5.0 # Apache-2.0
 
 # redirect tests in docs
 whereto>=0.3.0 # Apache-2.0
+
+# needed to generate osprofiler config options
+osprofiler>=1.4.0 # Apache-2.0
diff --git a/etc/nova/nova-config-generator.conf b/etc/nova/nova-config-generator.conf
index 0f0f81bc7563..4bdcbd4833ad 100644
--- a/etc/nova/nova-config-generator.conf
+++ b/etc/nova/nova-config-generator.conf
@@ -12,3 +12,4 @@ namespace = oslo.db.concurrency
 namespace = oslo.middleware
 namespace = oslo.concurrency
 namespace = keystonemiddleware.auth_token
+namespace = osprofiler