diff --git a/configure.ac b/configure.ac
index 889b6a8..9d53780 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,8 @@
 AC_INIT([asn1c], [0.9.28], [vlm@lionet.info])
-AM_INIT_AUTOMAKE([-Wall -Werror foreign])
+
+AC_CONFIG_AUX_DIR(config)
 AC_CONFIG_HEADER([config.h])
+AM_INIT_AUTOMAKE([-Wall -Werror foreign])
 AC_CONFIG_MACRO_DIR([m4])
 
 AM_MAINTAINER_MODE