diff --git a/configure b/configure
index ffb25db897..a2da156772 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Id: 0bbce5af379c511773e159a09a441aacf8a15fe7 .
+# From configure.in Id: 838f3616d2258153675d46d22d284c2132c897a8 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.69.
 #
@@ -21440,6 +21440,9 @@ ac_fn_c_check_type "$LINENO" "socklen_t" "ac_cv_type_socklen_t" "$ac_includes_de
 #ifdef HAVE_SYS_SOCKET_H
 #include <sys/socket.h>
 #endif
+#ifdef HAVE_WINSOCK2
+#include <ws2tcpip.h>
+#endif
 "
 if test "x$ac_cv_type_socklen_t" = xyes; then :