diff --git a/platform/minimal-net/contiki-conf.h b/platform/minimal-net/contiki-conf.h
index bbc44642b..5368ac640 100644
--- a/platform/minimal-net/contiki-conf.h
+++ b/platform/minimal-net/contiki-conf.h
@@ -35,7 +35,7 @@
 
 #include <inttypes.h>
 #include <limits.h>
-#ifndef WIN32_LEAN_AND_MEAN
+#ifndef _WIN32
 #include <sys/select.h>
 #endif