diff --git a/src/helper/replacements.h b/src/helper/replacements.h
index c3a2bf77d..2725d945e 100644
--- a/src/helper/replacements.h
+++ b/src/helper/replacements.h
@@ -41,6 +41,7 @@
 /* include necessary headers for socket functionality */
 #ifdef _WIN32
 #include <winsock2.h>
+#include <ws2tcpip.h>
 #else
 #include <sys/socket.h>
 #include <sys/poll.h>