diff --git a/neutron/services/trunk/exceptions.py b/neutron/services/trunk/exceptions.py
index 37adbcdddc9..1d5f4c627b5 100644
--- a/neutron/services/trunk/exceptions.py
+++ b/neutron/services/trunk/exceptions.py
@@ -27,7 +27,7 @@ class TrunkNotFound(n_exc.NotFound):
 
 
 class SubPortNotFound(n_exc.NotFound):
-    message = _("SubPort on trunk %(trunk_id)s with parent port %(port_id)s "
+    message = _("SubPort %(port_id)s on trunk %(trunk_id)s "
                 "could not be found.")