1 files changed, 1 insertions, 0 deletions
diff --git a/configure.in b/configure.in
index 46e290a..70f1109 100644
--- a/configure.in
+++ b/configure.in
@@ -2214,6 +2214,7 @@ main()
     hints.ai_family = AF_UNSPEC;
     hints.ai_flags = passive ? AI_PASSIVE : 0;
     hints.ai_socktype = SOCK_STREAM;
+    hints.ai_protocol = IPPROTO_TCP;
     if ((gaierr = getaddrinfo(NULL, "54321", &hints, &aitop)) != 0) {
       (void)gai_strerror(gaierr);
       goto bad;