diff --git a/components/net/lwip-1.4.1/src/arch/sys_arch.c b/components/net/lwip-1.4.1/src/arch/sys_arch.c
index ee1d9524100dad9392ac32db5ff32cb003ab7437..356dc101cf1641ded9d33b21603fbe1b4ac79c83 100644
--- a/components/net/lwip-1.4.1/src/arch/sys_arch.c
+++ b/components/net/lwip-1.4.1/src/arch/sys_arch.c
@@ -108,7 +108,7 @@ static void tcpip_init_done_callback(void *arg)
                 netif_set_up(ethif->netif);
             }
 
-#ifdef LWIP_NETIF_LINK_CALLBACK
+#if LWIP_NETIF_LINK_CALLBACK
             netif_set_link_up(ethif->netif);
 #endif