About changes in phalcon 1.3.x sources

Hi, i try add new function, but don't understand, why it working on macos, but on ubuntu it calls segmentation fault?

router.c (and added declaration in header):

PHP_METHOD(Phalcon_Mvc_Router, getPrefix) {
    zval *route, *router_prefix = NULL;
    PHALCON_MM_GROW();
    PHALCON_CALL_METHOD(&route, this_ptr, "getmatchedroute");
    PHALCON_CALL_METHOD(&router_prefix, route, "getprefix");
    RETURN_CTOR(router_prefix);
}

Thanx for any help.