1 files changed, 4 insertions, 1 deletions

diff --git a/src/udp.c b/src/udp.c
index 99a766f..e59fa1b 100644
--- a/src/udp.c
+++ b/src/udp.c
@@ -188,7 +188,10 @@ static int meth_sendto(lua_State *L) {
     memset(&aihint, 0, sizeof(aihint));
     aihint.ai_family = udp->family;
     aihint.ai_socktype = SOCK_DGRAM;
-    aihint.ai_flags = AI_NUMERICHOST | AI_NUMERICSERV;
+    aihint.ai_flags = AI_NUMERICHOST;
+#ifdef AI_NUMERICSERV
+    aihint.ai_flags |= AI_NUMERICSERV;
+#endif
     err = getaddrinfo(ip, port, &aihint, &ai);
         if (err) {
         lua_pushnil(L);