diff --git a/lualib-src/lua-socket.c b/lualib-src/lua-socket.c
index df81ce17..eabb8620 100644
--- a/lualib-src/lua-socket.c
+++ b/lualib-src/lua-socket.c
@@ -9,6 +9,7 @@
 #include <lua.h>
 #include <lauxlib.h>
 
+#include <sys/socket.h>
 #include <arpa/inet.h>
 
 #include "skynet_socket.h"