diff --git a/configure.ac b/configure.ac
index d0bfcb823b..bb196f5414 100644
--- a/configure.ac
+++ b/configure.ac
@@ -33,6 +33,7 @@ AC_CONFIG_AUX_DIR([build-aux])
 AC_USE_SYSTEM_EXTENSIONS
 AC_SYS_LARGEFILE
 AC_PREFIX_DEFAULT([/usr])
+AM_MAINTAINER_MODE([enable])
 AM_INIT_AUTOMAKE([foreign 1.11 -Wall -Wno-portability silent-rules tar-pax no-dist-gzip dist-xz subdir-objects check-news])
 AM_SILENT_RULES([yes])
 AC_CANONICAL_HOST