diff --git a/rpcs3/Emu/NP/rpcn_client.h b/rpcs3/Emu/NP/rpcn_client.h
index e3d2fb0299..28200d7a2f 100644
--- a/rpcs3/Emu/NP/rpcn_client.h
+++ b/rpcs3/Emu/NP/rpcn_client.h
@@ -9,6 +9,7 @@
 
 #ifdef _WIN32
 #include <winsock2.h>
+#include <ws2tcpip.h>
 #else
 #ifdef __clang__
 #pragma GCC diagnostic push