diff --git a/socketft.cpp b/socketft.cpp
index eda6b2ed..b44c0592 100644
--- a/socketft.cpp
+++ b/socketft.cpp
@@ -60,8 +60,8 @@ const int SOCKET_EWOULDBLOCK = EWOULDBLOCK;
 
 #define MAX_ADDRSTRLEN (INET6_ADDRSTRLEN > INET_ADDRSTRLEN ? INET6_ADDRSTRLEN : INET_ADDRSTRLEN)
 
-#if defined(CRYPTOPP_WIN32_AVAILABLE)
-// http://stackoverflow.com/a/20816961
+// Also see http://stackoverflow.com/a/20816961 and http://github.com/weidai11/cryptopp/issues/322
+#if defined(USE_WINDOWS_STYLE_SOCKETS)
 int inet_pton(int af, const char *src, void *dst)
 {
 #if CRYPTOPP_MSC_VERSION