diff --git a/doc/source/install/compute-install-obs.rst b/doc/source/install/compute-install-obs.rst
index 75fbaac07034..92e2a730de7b 100644
--- a/doc/source/install/compute-install-obs.rst
+++ b/doc/source/install/compute-install-obs.rst
@@ -77,8 +77,8 @@ Install and configure components
         auth_url = http://controller:5000/v3
         memcached_servers = controller:11211
         auth_type = password
-        project_domain_name = default
-        user_domain_name = default
+        project_domain_name = Default
+        user_domain_name = Default
         project_name = service
         username = nova
         password = NOVA_PASS
diff --git a/doc/source/install/compute-install-rdo.rst b/doc/source/install/compute-install-rdo.rst
index 867ed9ff2a6c..bc43403ae5a2 100644
--- a/doc/source/install/compute-install-rdo.rst
+++ b/doc/source/install/compute-install-rdo.rst
@@ -69,8 +69,8 @@ Install and configure components
         auth_url = http://controller:5000/v3
         memcached_servers = controller:11211
         auth_type = password
-        project_domain_name = default
-        user_domain_name = default
+        project_domain_name = Default
+        user_domain_name = Default
         project_name = service
         username = nova
         password = NOVA_PASS
diff --git a/doc/source/install/compute-install-ubuntu.rst b/doc/source/install/compute-install-ubuntu.rst
index d3ab3aecb736..37ae664e8cd1 100644
--- a/doc/source/install/compute-install-ubuntu.rst
+++ b/doc/source/install/compute-install-ubuntu.rst
@@ -59,8 +59,8 @@ Install and configure components
         auth_url = http://controller:5000/v3
         memcached_servers = controller:11211
         auth_type = password
-        project_domain_name = default
-        user_domain_name = default
+        project_domain_name = Default
+        user_domain_name = Default
         project_name = service
         username = nova
         password = NOVA_PASS
diff --git a/doc/source/install/controller-install-obs.rst b/doc/source/install/controller-install-obs.rst
index 01b77620d482..07c2aebaa2e8 100644
--- a/doc/source/install/controller-install-obs.rst
+++ b/doc/source/install/controller-install-obs.rst
@@ -243,8 +243,8 @@ Install and configure components
         auth_url = http://controller:5000/v3
         memcached_servers = controller:11211
         auth_type = password
-        project_domain_name = default
-        user_domain_name = default
+        project_domain_name = Default
+        user_domain_name = Default
         project_name = service
         username = nova
         password = NOVA_PASS
diff --git a/doc/source/install/controller-install-rdo.rst b/doc/source/install/controller-install-rdo.rst
index 7914aecf9901..1d56b6e66dbb 100644
--- a/doc/source/install/controller-install-rdo.rst
+++ b/doc/source/install/controller-install-rdo.rst
@@ -226,8 +226,8 @@ Install and configure components
         auth_url = http://controller:5000/v3
         memcached_servers = controller:11211
         auth_type = password
-        project_domain_name = default
-        user_domain_name = default
+        project_domain_name = Default
+        user_domain_name = Default
         project_name = service
         username = nova
         password = NOVA_PASS
diff --git a/doc/source/install/controller-install-ubuntu.rst b/doc/source/install/controller-install-ubuntu.rst
index 5f7c6d2faed7..0272adbcc03a 100644
--- a/doc/source/install/controller-install-ubuntu.rst
+++ b/doc/source/install/controller-install-ubuntu.rst
@@ -224,8 +224,8 @@ Install and configure components
         auth_url = http://controller:5000/v3
         memcached_servers = controller:11211
         auth_type = password
-        project_domain_name = default
-        user_domain_name = default
+        project_domain_name = Default
+        user_domain_name = Default
         project_name = service
         username = nova
         password = NOVA_PASS