diff --git a/socket.c b/socket.c
index ff6ed13..379aab1 100644
--- a/socket.c
+++ b/socket.c
@@ -13,11 +13,16 @@
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
+#include <poll.h>
 #ifdef __linux__
 #include <sys/epoll.h>
 #endif
 #include <arpa/inet.h>
 
+#ifndef MSG_NOSIGNAL
+#define MSG_NOSIGNAL 0
+#endif
+
 #include "dat.h"
 #include "huffman.h"
 #include "listensocket.h"