diff --git a/src/netif/ethernetif.c b/src/netif/ethernetif.c
index f4a71f8d..a5b7d990 100644
--- a/src/netif/ethernetif.c
+++ b/src/netif/ethernetif.c
@@ -45,7 +45,7 @@
 
 #include "lwip/opt.h"
 
-#if 1 /* don't build, this is only a skeleton, see previous comment */
+#if 0 /* don't build, this is only a skeleton, see previous comment */
 
 #include "lwip/def.h"
 #include "lwip/mem.h"