diff --git a/udp.c b/udp.c
index 5b173a1..b292c5e 100644
--- a/udp.c
+++ b/udp.c
@@ -8,7 +8,7 @@
  * store from ip + port in message ?
 */
 
-#ifdef __WIN32__
+#ifdef _WIN32
 #include <winsock2.h>
 #else
 #include <sys/socket.h>
@@ -26,13 +26,13 @@
 #undef while
 
 // G l o b a L  E v i L //
-#ifdef __WIN32__
+#ifdef _WIN32
 static SOCKET udp_sock;
 #else
 static int udp_sock;
 #endif
 
-#ifdef __WIN32__
+#ifdef _WIN32
 void udp_init(Ampler_state *state) {
 	// https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-wsastartup
 	WSADATA wsa;
@@ -71,7 +71,7 @@ void udp_init(Ampler_state *state) {
 }
 #endif
 
-#ifdef __WIN32__
+#ifdef _WIN32
 void udp_quit(Ampler_state *state) {
 	closesocket(udp_sock);
 	WSACleanup();
@@ -82,7 +82,7 @@ void udp_quit(Ampler_state *state) {
 }
 #endif
 
-#ifdef __WIN32__
+#ifdef _WIN32
 void recv_packet(Ampler_state *state) {
 	char discard_buf[32] = { 0 }; // for dropped packets
 	char *buf = discard_buf;
@@ -128,7 +128,7 @@ void recv_packet(Ampler_state *state) {
 }
 #endif
 
-#ifdef __WIN32__
+#ifdef _WIN32
 void udp_frame(Ampler_state *state) {
 	// https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-select
 	fd_set recv_fd_set;