diff --git a/servers/slapd/back-sql/proto-sql.h b/servers/slapd/back-sql/proto-sql.h
index 4eccf101e5..b29a314b1e 100644
--- a/servers/slapd/back-sql/proto-sql.h
+++ b/servers/slapd/back-sql/proto-sql.h
@@ -1,3 +1,4 @@
+/* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
  * Copyright 1999-2009 The OpenLDAP Foundation.