* and the entryTtl attribute */
                SLAP_BFLAG_DYNAMIC |
 #endif /* LDAP_DYNAMIC_OBJECTS */
-               0;
+
+               /* back-ldap recognizes RFC4525 increment;
+                * let the remote server complain, if needed (ITS#5912) */
+               SLAP_BFLAG_INCREMENT;
 
        bi->bi_open = ldap_back_open;
        bi->bi_config = 0;
 
                SLAP_BFLAG_DYNAMIC |
 #endif /* LDAP_DYNAMIC_OBJECTS */
 #endif
-               0;
+
+               /* back-meta recognizes RFC4525 increment;
+                * let the remote server complain, if needed (ITS#5912) */
+               SLAP_BFLAG_INCREMENT;
 
        bi->bi_open = meta_back_open;
        bi->bi_config = 0;
 
        if ( op->orm_increment && !SLAP_INCREMENT( op->o_bd ) ) {
                send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
                        "modify/increment not supported in context" );
+               goto cleanup;
        }
 
        /*