diff --git a/manifests/agent/compute.pp b/manifests/agent/compute.pp
index acb60eaee..c07d717af 100644
--- a/manifests/agent/compute.pp
+++ b/manifests/agent/compute.pp
@@ -65,12 +65,12 @@
       line   =>
         'notification_driver=nova.openstack.common.notifier.rpc_notifier',
       path   => '/etc/nova/nova.conf',
-      after  => '\[DEFAULT\]',
+      after  => '^\s*\[DEFAULT\]',
       notify => Service['nova-compute'];
     'nova-notification-driver-ceilometer':
       line   => 'notification_driver=ceilometer.compute.nova_notifier',
       path   => '/etc/nova/nova.conf',
-      after  => '\[DEFAULT\]',
+      after  => '^\s*\[DEFAULT\]',
       notify => Service['nova-compute'];
   }