diff --git a/sys/kern/uipc_domain.c b/sys/kern/uipc_domain.c
index 3962f0ca6866..cabf710ad967 100644
--- a/sys/kern/uipc_domain.c
+++ b/sys/kern/uipc_domain.c
@@ -311,7 +311,7 @@ sockaddr_checklen(const struct sockaddr *sa)
 
 	char buf[512];
 	sockaddr_format(sa, buf, sizeof(buf));
-	printf("%s: %p bad len af=%hhu socklen=%hhu len=%u [%s]\n",
+	panic("%s: %p bad len af=%hhu socklen=%hhu len=%u [%s]\n",
 	    __func__, sa, sa->sa_family, sa->sa_len, (unsigned)len, buf);
 }
 #else