diff --git a/lib/nova b/lib/nova
index 3749790..89dc3f7 100644
--- a/lib/nova
+++ b/lib/nova
@@ -428,8 +428,7 @@
     if is_service_enabled ceilometer; then
         iniset $NOVA_CONF DEFAULT instance_usage_audit "True"
         iniset $NOVA_CONF DEFAULT instance_usage_audit_period "hour"
-        iniset $NOVA_CONF DEFAULT notification_driver "nova.openstack.common.notifier.rpc_notifier"
-        iniset $NOVA_CONF DEFAULT notification_driver "ceilometer.compute.nova_notifier"
+        iniset_multiline $NOVA_CONF DEFAULT notification_driver "nova.openstack.common.notifier.rpc_notifier" "ceilometer.compute.nova_notifier"
     fi