diff --git a/src/client/host.c b/src/client/host.c
index 7297c79f..cb309721 100644
--- a/src/client/host.c
+++ b/src/client/host.c
@@ -49,6 +49,7 @@
 #include <unistd.h>
 #else
 #include <winsock2.h>
+#include <ws2tcpip.h>
 #endif
 #include "misc.h"