diff --git a/socketget_windows.go b/socketget_windows.go
index <HASH>..<HASH> 100644
--- a/socketget_windows.go
+++ b/socketget_windows.go
@@ -4,10 +4,13 @@ package zmq4
 
 /*
 #include <zmq.h>
+#include <winsock2.h>
 #include "zmq4.h"
 */
 import "C"
 
+// winsock2.h needed for ZeroMQ version 4.3.3
+
 import (
 	"unsafe"
 )
On Windows, winsock2.h needed for ZeroMQ version <I>