diff --git a/configure.ac b/configure.ac
index fd46ced4cb1b8a72ad6dc8f4b38cbeb29baf58a4..07261b9db64422a07072e753b39edc5660f92935 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,6 +3,7 @@
 AC_PREREQ(2.59)
 AC_INIT([alberta], [2.1-BETA], [Claus.Heine@Mathematik.Uni-Freiburg.DE,kosterdtp@ewi.uwente.nl])
 AC_CONFIG_SRCDIR([alberta/src/Common/alberta.h])
+AC_CONFIG_MACRO_DIR([m4])
 
 AM_MAINTAINER_MODE
 AC_CANONICAL_BUILD