op2.orm_no_opattrs = 0;
 
        if ( new_ndn != NULL ) {
+               BackendInfo *bi = op2.o_bd->bd_info;
+
                assert( !BER_BVISNULL( new_dn ) );
                assert( !BER_BVISNULL( new_ndn ) );
 
                ml->sml_values[ 0 ] = *new_dn;
                ml->sml_nvalues[ 0 ] = *new_ndn;
 
+               op2.o_bd->bd_info = (BackendInfo *)on->on_info;
                (void)op->o_bd->be_modify( &op2, &rs2 );
+               op2.o_bd->bd_info = bi;
                if ( rs2.sr_err != LDAP_SUCCESS ) {
                        char buf[ SLAP_TEXT_BUFLEN ];
                        snprintf( buf, sizeof( buf ),
-                               "memberof_value_modify %s=\"%s\" failed err=%d",
-                               ad->ad_cname.bv_val, new_dn->bv_val, rs2.sr_err );
+                               "memberof_value_modify DN=\"%s\" add %s=\"%s\" failed err=%d",
+                               op2.o_req_dn.bv_val, ad->ad_cname.bv_val, new_dn->bv_val, rs2.sr_err );
                        Debug( LDAP_DEBUG_ANY, "%s: %s\n",
                                op->o_log_prefix, buf, 0 );
                }
        }
 
        if ( old_ndn != NULL ) {
+               BackendInfo *bi = op2.o_bd->bd_info;
+
                assert( !BER_BVISNULL( old_dn ) );
                assert( !BER_BVISNULL( old_ndn ) );
 
                ml->sml_values[ 0 ] = *old_dn;
                ml->sml_nvalues[ 0 ] = *old_ndn;
 
+               op2.o_bd->bd_info = (BackendInfo *)on->on_info;
                (void)op->o_bd->be_modify( &op2, &rs2 );
+               op2.o_bd->bd_info = bi;
                if ( rs2.sr_err != LDAP_SUCCESS ) {
                        char buf[ SLAP_TEXT_BUFLEN ];
                        snprintf( buf, sizeof( buf ),
-                               "memberof_value_modify %s=\"%s\" failed err=%d",
-                               ad->ad_cname.bv_val, old_dn->bv_val, rs2.sr_err );
+                               "memberof_value_modify DN=\"%s\" delete %s=\"%s\" failed err=%d",
+                               op2.o_req_dn.bv_val, ad->ad_cname.bv_val, old_dn->bv_val, rs2.sr_err );
                        Debug( LDAP_DEBUG_ANY, "%s: %s\n",
                                op->o_log_prefix, buf, 0 );
                }