diff --git a/servers/slapd/overlays/memberof.c b/servers/slapd/overlays/memberof.c
index 8e282e99910c3cf0424c77989183d737e8c39224..48b7f1a2363d4665f6dad5be2f5c152b99300a7c 100644
--- a/servers/slapd/overlays/memberof.c
+++ b/servers/slapd/overlays/memberof.c
@@ -444,6 +444,7 @@ memberof_value_modify(
 		assert( !BER_BVISNULL( new_dn ) );
 		assert( !BER_BVISNULL( new_ndn ) );
 
+		ml = &mod[ 1 ];
 		ml->sml_op = LDAP_MOD_ADD;
 
 		ml->sml_values[ 0 ] = *new_dn;
@@ -463,6 +464,7 @@ memberof_value_modify(
 		assert( !BER_BVISNULL( old_dn ) );
 		assert( !BER_BVISNULL( old_ndn ) );
 
+		ml = &mod[ 1 ];
 		ml->sml_op = LDAP_MOD_DELETE;
 
 		ml->sml_values[ 0 ] = *old_dn;