diff --git a/configure.in b/configure.ac
similarity index 99%
rename from configure.in
rename to configure.ac
index 8cbbfe5ce9..32f376e3a2 100644
--- a/configure.in
+++ b/configure.ac
@@ -3,7 +3,7 @@ dnl Process this file with autoconf to produce a configure script.
 AC_INIT([libvirt], [0.7.5])
 AC_CONFIG_SRCDIR([src/libvirt.c])
 AC_CONFIG_AUX_DIR([build-aux])
-AM_CONFIG_HEADER([config.h])
+AC_CONFIG_HEADERS([config.h])
 dnl Make automake keep quiet about wildcards & other GNUmake-isms
 AM_INIT_AUTOMAKE([-Wno-portability])