diff --git a/configure.ac b/configure.ac
index 02c664d..ec02eba 100644
--- a/configure.ac
+++ b/configure.ac
@@ -28,7 +28,7 @@ AC_INIT([xf86-video-xgi],
 RELEASE_DATE="27 August 2007"
 
 AC_CONFIG_SRCDIR([Makefile.am])
-AM_CONFIG_HEADER([config.h])
+AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_AUX_DIR(.)
 
 # Require X.Org macros 1.8 or later for MAN_SUBSTS set by XORG_MANPAGE_SECTIONS