diff --git a/neutron/extensions/vpnaas.py b/neutron/extensions/vpnaas.py
index f6bdcd7611..c45378aff2 100644
--- a/neutron/extensions/vpnaas.py
+++ b/neutron/extensions/vpnaas.py
@@ -32,7 +32,7 @@ class VPNServiceNotFound(qexception.NotFound):
 
 
 class IPsecSiteConnectionNotFound(qexception.NotFound):
-    message = _("ipsec_site_connection %(ipsecsite_conn_id)s not found")
+    message = _("ipsec_site_connection %(ipsec_site_conn_id)s not found")
 
 
 class IPsecSiteConnectionDpdIntervalValueError(qexception.InvalidInput):