diff --git a/doc/source/install/install-debian.rst b/doc/source/install/install-debian.rst
index aa6c2e509d..982a28ef19 100644
--- a/doc/source/install/install-debian.rst
+++ b/doc/source/install/install-debian.rst
@@ -119,6 +119,12 @@ Install and configure components
 
      .. end
 
+     .. note::
+
+        In case your keystone run at 5000 port then you would mentioned
+        keystone port here as well i.e.
+        OPENSTACK_KEYSTONE_URL = "http://%s:5000/identity/v3" % OPENSTACK_HOST
+
    * Enable support for domains:
 
      .. path /etc/openstack-dashboard/local_settings.py
diff --git a/doc/source/install/install-obs.rst b/doc/source/install/install-obs.rst
index 77f32dd393..9db8a2c72c 100644
--- a/doc/source/install/install-obs.rst
+++ b/doc/source/install/install-obs.rst
@@ -105,6 +105,12 @@ Install and configure components
 
      .. end
 
+     .. note::
+
+        In case your keystone run at 5000 port then you would mentioned
+        keystone port here as well i.e.
+        OPENSTACK_KEYSTONE_URL = "http://%s:5000/identity/v3" % OPENSTACK_HOST
+
    * Enable support for domains:
 
      .. path /srv/www/openstack-dashboard/openstack_dashboard/local/local_settings.py
diff --git a/doc/source/install/install-rdo.rst b/doc/source/install/install-rdo.rst
index 61acb36738..406e7adb40 100644
--- a/doc/source/install/install-rdo.rst
+++ b/doc/source/install/install-rdo.rst
@@ -96,6 +96,12 @@ Install and configure components
 
      .. end
 
+     .. note::
+
+        In case your keystone run at 5000 port then you would mentioned
+        keystone port here as well i.e.
+        OPENSTACK_KEYSTONE_URL = "http://%s:5000/identity/v3" % OPENSTACK_HOST
+
    * Enable support for domains:
 
      .. path /etc/openstack-dashboard/local_settings
diff --git a/doc/source/install/install-ubuntu.rst b/doc/source/install/install-ubuntu.rst
index 7c618ec295..464af383a7 100644
--- a/doc/source/install/install-ubuntu.rst
+++ b/doc/source/install/install-ubuntu.rst
@@ -93,6 +93,12 @@ Install and configure components
 
      .. end
 
+     .. note::
+
+        In case your keystone run at 5000 port then you would mentioned
+        keystone port here as well i.e.
+        OPENSTACK_KEYSTONE_URL = "http://%s:5000/identity/v3" % OPENSTACK_HOST
+
    * Enable support for domains:
 
      .. path /etc/openstack-dashboard/local_settings.py