diff --git a/configure.in b/configure.in
index de14b22ce714e4ca1e1ac14b1511000890bdc18d..b273d749c73263be282277b5ff1f7c5b743a9438 100644
--- a/configure.in
+++ b/configure.in
@@ -3,6 +3,7 @@ dnl Process this file with autoconf to produce a configure script.
 AC_INIT(src/audio_out.c)
 
 AM_INIT_AUTOMAKE(libao,0.8.4)
+AM_MAINTAINER_MODE
 AM_DISABLE_STATIC
 
 dnl Library versioning