diff --git a/src/c/time.d b/src/c/time.d
index 1cc1bbd87..20aa3a65e 100644
--- a/src/c/time.d
+++ b/src/c/time.d
@@ -37,6 +37,7 @@
 #include <ecl/internal.h>
 #if defined(mingw32) || defined(_MSC_VER)
 #include <windows.h>
+#include <WinSock.h>
 #endif
 
 #ifdef darwin