diff --git a/configure.ac b/configure.ac
index 4931d3b..0b6c039 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,7 @@
 AC_PREREQ([2.57])
 AC_INIT([XExtProto], [7.1.1], [https://bugs.freedesktop.org/enter_bug.cgi?product=xorg])
 AM_INIT_AUTOMAKE([foreign dist-bzip2])
+AM_MAINTAINER_MODE
 
 # Require xorg-macros: XORG_CHANGELOG
 m4_ifndef([XORG_MACROS_VERSION], [AC_FATAL([must install xorg-macros 1.2 or later before running autoconf/autogen])])