diff --git a/configure b/configure
index f7a5ea70195aaf260571a3f0c3cfadb19dea2336..19d95a0d0518d986bf9f9708344a996664920bb2 100755
--- a/configure
+++ b/configure
@@ -8049,6 +8049,9 @@ cat >>conftest.$ac_ext <<_ACEOF
      #ifdef HAVE_SYS_SOCKETVAR_H
      # include <sys/socketvar.h>
      #endif
+     #ifdef HAVE_SYS_TIMEOUT_H
+     # include <sys/timeout.h>
+     #endif
      #ifdef HAVE_NETINET_IN_H
      # include <netinet/in.h>
      #endif
diff --git a/configure.ac b/configure.ac
index 122191d68214215f1f92740432ee2bf7c6f59e13..063ea1503bb7641c3cf405d7eb8e7340ecdbaec9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -423,6 +423,9 @@ AC_CHECK_HEADERS([netinet/tcp_timer.h netinet/udp_var.h netinet/icmp_var.h netin
      #ifdef HAVE_SYS_SOCKETVAR_H
      # include <sys/socketvar.h>
      #endif
+     #ifdef HAVE_SYS_TIMEOUT_H
+     # include <sys/timeout.h>
+     #endif
      #ifdef HAVE_NETINET_IN_H
      # include <netinet/in.h>
      #endif