diff --git a/devstack/lib/flavors b/devstack/lib/flavors
index b2ddb42ebf7..2b9aa2e7b86 100644
--- a/devstack/lib/flavors
+++ b/devstack/lib/flavors
@@ -4,5 +4,5 @@
 FLAVORS_PLUGIN=flavors
 
 function configure_flavors {
-    _neutron_service_plugin_class_add $FLAVORS_PLUGIN
+    neutron_service_plugin_class_add $FLAVORS_PLUGIN
 }
diff --git a/devstack/lib/qos b/devstack/lib/qos
index a033c908a73..2c5f0b4f817 100644
--- a/devstack/lib/qos
+++ b/devstack/lib/qos
@@ -1,5 +1,5 @@
 function configure_qos_service_plugin {
-    _neutron_service_plugin_class_add "qos"
+    neutron_service_plugin_class_add "qos"
 }
 
 
diff --git a/devstack/lib/trunk b/devstack/lib/trunk
index c1471a1cf1d..271ccd78cca 100644
--- a/devstack/lib/trunk
+++ b/devstack/lib/trunk
@@ -1,5 +1,5 @@
 function configure_trunk_service_plugin {
-    _neutron_service_plugin_class_add "trunk"
+    neutron_service_plugin_class_add "trunk"
 }
 
 function configure_trunk_extension {