diff --git a/configure.ac b/configure.ac
index a98bb35..393471c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,7 +3,7 @@ dnl configure.ac -- Process this file with autoconf to produce a configure scrip
 AC_INIT([petidomo],[m4_esyscmd(build-aux/git-version-gen .tarball-version)],[simons@cryp.to],[petidomo],[https://github.com/peti/petidomo])
 AC_CONFIG_SRCDIR([petidomo.h])
 AC_CONFIG_AUX_DIR([build-aux])
-AM_INIT_AUTOMAKE([1.11 -Wall gnu subdir-objects])
+AM_INIT_AUTOMAKE([1.11 -Wall foreign subdir-objects])
 AC_CONFIG_MACRO_DIR([build-aux])
 
 AC_COPYRIGHT([dnl