diff --git a/manifests/agents/l3.pp b/manifests/agents/l3.pp
index 564f27ced..2e3fb2f53 100644
--- a/manifests/agents/l3.pp
+++ b/manifests/agents/l3.pp
@@ -164,7 +164,7 @@ class neutron::agents::l3 (
   }
 
   if $network_device_mtu {
-    warning('The neutron::l3_agent::network_device_mtu parameter is deprecated, use neutron::network_device_mtu instead.')
+    warning('The neutron::agents::l3::network_device_mtu parameter is deprecated, use neutron::network_device_mtu instead.')
     neutron_l3_agent_config {
       'DEFAULT/network_device_mtu':           value => $network_device_mtu;
     }