diff --git a/servers/slapd/back-ldap/external.h b/servers/slapd/back-ldap/external.h
index bef70998bc..f048de168d 100644
--- a/servers/slapd/back-ldap/external.h
+++ b/servers/slapd/back-ldap/external.h
@@ -56,6 +56,8 @@ extern int	ldap_back_abandon LDAP_P(( BackendDB *bd,
 	Connection *conn, Operation *op, int msgid ));
 
 extern int	ldap_back_group LDAP_P(( BackendDB *bd,
+	Connection *conn,
+	Operation *op,
 	Entry *target,
 	const char* gr_ndn,
 	const char* op_ndn,
diff --git a/servers/slapd/back-ldap/group.c b/servers/slapd/back-ldap/group.c
index 0864ad4d67..94ec953ba0 100644
--- a/servers/slapd/back-ldap/group.c
+++ b/servers/slapd/back-ldap/group.c
@@ -23,6 +23,8 @@
 int
 ldap_back_group(
 	Backend	*be,
+	Connection *conn,
+	Operation *op,
 	Entry	*target,
 	const char	*gr_ndn,
 	const char	*op_ndn,