diff --git a/configure b/configure
index 14411a6..a05cfd2 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 1.452 .
+# From configure.in Revision: 1.453 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.57 for python 2.4.
 #
@@ -14151,6 +14151,7 @@
     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;