diff --git a/ediv/src/stub/stub.c b/ediv/src/stub/stub.c
index 5b9cb18..80e12cb 100644
--- a/ediv/src/stub/stub.c
+++ b/ediv/src/stub/stub.c
@@ -20,7 +20,7 @@
 
 #include <assert.h>
 
-#ifndef __APPLE__
+#ifdef _WIN32
 #include <io.h>
 #endif