diff --git a/doc/source/architecture.rst b/doc/source/architecture.rst
index bfb0f3d5d..432359b9f 100644
--- a/doc/source/architecture.rst
+++ b/doc/source/architecture.rst
@@ -461,4 +461,4 @@ change to a new value:
 
 
 
-.. _Watcher API: webapi/v1.html
+.. _Watcher API: https://developer.openstack.org/api-ref/resource-optimization/