diff --git a/lualib-src/lua-socket.c b/lualib-src/lua-socket.c
index 1754eb44..c9527372 100644
--- a/lualib-src/lua-socket.c
+++ b/lualib-src/lua-socket.c
@@ -15,6 +15,7 @@
 #include <sys/socket.h>
 #include <arpa/inet.h>
 #include <netdb.h>
+#include <netinet/in.h>
 
 #include "skynet.h"
 #include "skynet_socket.h"