diff --git a/sys/net/if_arcsubr.c b/sys/net/if_arcsubr.c
index 578549e7b66a..0f5fef36b980 100644
--- a/sys/net/if_arcsubr.c
+++ b/sys/net/if_arcsubr.c
@@ -758,7 +758,9 @@ arc_resolvemulti(struct ifnet *ifp, struct sockaddr **llsa,
     struct sockaddr *sa)
 {
 	struct sockaddr_dl *sdl;
+#ifdef INET
 	struct sockaddr_in *sin;
+#endif
 #ifdef INET6
 	struct sockaddr_in6 *sin6;
 #endif