diff --git a/lib/tempest b/lib/tempest
index d95a9f5..25db046 100644
--- a/lib/tempest
+++ b/lib/tempest
@@ -17,7 +17,7 @@
 #   - ``PUBLIC_NETWORK_NAME``
 #   - ``VIRT_DRIVER``
 #   - ``LIBVIRT_TYPE``
-#   - ``KEYSTONE_SERVICE_PROTOCOL``, ``KEYSTONE_SERVICE_HOST`` from lib/keystone
+#   - ``KEYSTONE_SERVICE_URI``, ``KEYSTONE_SERVICE_URI_V3`` from lib/keystone
 #
 # Optional Dependencies:
 #
@@ -257,7 +257,7 @@
     iniset $TEMPEST_CONFIG volume build_timeout $BUILD_TIMEOUT
 
     # Identity
-    iniset $TEMPEST_CONFIG identity uri "$KEYSTONE_SERVICE_PROTOCOL://$KEYSTONE_SERVICE_HOST:5000/v2.0/"
+    iniset $TEMPEST_CONFIG identity uri "$KEYSTONE_SERVICE_URI/v2.0/"
     iniset $TEMPEST_CONFIG identity uri_v3 "$KEYSTONE_SERVICE_URI_V3"
     iniset $TEMPEST_CONFIG identity user_lockout_failure_attempts $KEYSTONE_LOCKOUT_FAILURE_ATTEMPTS
     iniset $TEMPEST_CONFIG identity user_lockout_duration $KEYSTONE_LOCKOUT_DURATION