diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
index 212eb278bda6..8bf5906073bc 100644
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -78,7 +78,7 @@ struct inet6_ifaddr {
 struct ip6_sf_socklist {
 	unsigned int		sl_max;
 	unsigned int		sl_count;
-	struct in6_addr		sl_addr[0];
+	struct in6_addr		sl_addr[];
 };
 
 #define IP6_SFLSIZE(count)	(sizeof(struct ip6_sf_socklist) + \