diff --git a/lib/config-win32.h b/lib/config-win32.h
index c24e8b7b6affd45262cd8f6b25fa11430d32dabd..6d60735a763d6c896a15085e9e3d57ef66e9a58d 100644
--- a/lib/config-win32.h
+++ b/lib/config-win32.h
@@ -27,7 +27,7 @@
 #define ssize_t int
 
 /* Define this to 'int' if socklen_t is not an available typedefed type */
-#if !defined(ENABLE_IPV6) && !defined(USE_SSLEAY)
+#if !defined(ENABLE_IPV6) && ((_MSC_VER < 1300) || !defined(USE_SSLEAY))
 #define socklen_t int
 #endif