diff --git a/src/lib/evil/evil_inet.c b/src/lib/evil/evil_inet.c
index e455d0ea00..05d130c77d 100644
--- a/src/lib/evil/evil_inet.c
+++ b/src/lib/evil/evil_inet.c
@@ -22,7 +22,7 @@
  * * modification of the management of the error
  */
 
-#if ! (_WIN32_WINNT >= _WIN32_WINNT_VISTA)
+#if ! (_WIN32_WINNT >= 0x600 /* _WIN32_WINNT_VISTA */)
 
 #ifdef HAVE_CONFIG_H
 # include "config.h"
diff --git a/src/lib/evil/evil_inet.h b/src/lib/evil/evil_inet.h
index 4db49b8acd..6858a83c25 100644
--- a/src/lib/evil/evil_inet.h
+++ b/src/lib/evil/evil_inet.h
@@ -18,7 +18,7 @@
 #define __EVIL_INET_H__
 
 
-#if ! (_WIN32_WINNT >= _WIN32_WINNT_VISTA)
+#if ! (_WIN32_WINNT >= 0x600 /* _WIN32_WINNT_VISTA */)
 
 
 /**