--- a/sys/netinet6/ip6_output.c	2026-06-29 12:51:19.000000000 +0000
+++ b/sys/netinet6/ip6_output.c	2026-10-26 03:31:47.247168419 +0000
@@ -2512,7 +2512,7 @@
 		loop = mtod(*mp, u_int *);
 		(*mp)->m_len = sizeof(u_int);
 		if (im6o == NULL)
-			*loop = ip6_defmcasthlim;
+			*loop = IPV6_DEFAULT_MULTICAST_LOOP;
 		else
 			*loop = im6o->im6o_multicast_loop;
 		return (0);