diff --git a/doc/source/admin/troubleshooting-guide.rst b/doc/source/admin/troubleshooting-guide.rst
index 5e8c6826a1..04b5c1b4bf 100644
--- a/doc/source/admin/troubleshooting-guide.rst
+++ b/doc/source/admin/troubleshooting-guide.rst
@@ -117,11 +117,11 @@ please refer
 <https://opendev.org/openstack/magnum/src/branch/master/specs/create-trustee-user-for-each-bay.rst>`_.
 
 If Magnum fails to create the trustee, check the magnum config file (usually
-in /etc/magnum/magnum.conf). Make sure 'trustee_*' and 'auth_uri' are set and
-their values are correct:
+in /etc/magnum/magnum.conf). Make sure 'trustee_*' and 'www_authenticate_uri'
+are set and their values are correct:
 
     [keystone_authtoken]
-    auth_uri = http://controller:5000/v3
+    www_authenticate_uri = http://controller:5000/v3
     ...
 
     [trust]
diff --git a/doc/source/install/common/configure_2_edit_magnum_conf.rst b/doc/source/install/common/configure_2_edit_magnum_conf.rst
index 0c1eb6e282..9e286f1a69 100644
--- a/doc/source/install/common/configure_2_edit_magnum_conf.rst
+++ b/doc/source/install/common/configure_2_edit_magnum_conf.rst
@@ -62,7 +62,7 @@
         ...
         memcached_servers = controller:11211
         auth_version = v3
-        auth_uri = http://controller:5000/v3
+        www_authenticate_uri = http://controller:5000/v3
         project_domain_id = default
         project_name = service
         user_domain_id = default