diff -up workrave-1.9.4/configure.ac.automake-1_13 workrave-1.9.4/configure.ac
--- workrave-1.9.4/configure.ac.automake-1_13	2011-03-24 17:35:39.000000000 +0100
+++ workrave-1.9.4/configure.ac	2013-01-03 03:23:10.059940818 +0100
@@ -28,7 +28,7 @@ AC_PREREQ(2.61)
 AC_CONFIG_MACRO_DIR([m4])
 
 dnl Automake
-AM_CONFIG_HEADER(config.h)
+AC_CONFIG_HEADERS(config.h)
 AM_INIT_AUTOMAKE(workrave, workrave_version)
 AM_GNU_GETTEXT_VERSION()
 AM_MAINTAINER_MODE