diff --git a/configure.ac b/configure.ac
index d91eae1..565495e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,6 +4,7 @@ AC_CONFIG_SRCDIR([include/cryb/otp.h])
 AC_CONFIG_MACRO_DIR([m4])
 AM_INIT_AUTOMAKE([foreign no-dist-gzip dist-xz])
 AM_CONFIG_HEADER([include/config.h])
+AM_MAINTAINER_MODE([enable])
 
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 #