diff --git a/sys/kern/uipc_domain.c b/sys/kern/uipc_domain.c
index 98fba8fa863c..33a21c576544 100644
--- a/sys/kern/uipc_domain.c
+++ b/sys/kern/uipc_domain.c
@@ -71,6 +71,7 @@ static void	pfslowtimo(void *);
 
 struct domain *domains;		/* registered protocol domains */
 struct mtx dom_mtx;		/* domain list lock */
+MTX_SYSINIT(domain, &dom_mtx, "domain list", MTX_DEF);
 
 /*
  * Add a new protocol domain to the list of supported domains
@@ -130,8 +131,6 @@ domaininit(void *dummy)
 	    NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_NOFREE);
 	uma_zone_set_max(socket_zone, maxsockets);
 
-	mtx_init(&dom_mtx, "domain list lock", NULL, MTX_DEF);
-
 	if (max_linkhdr < 16)		/* XXX */
 		max_linkhdr = 16;