Index: Build.PL
--- Build.PL.orig
+++ Build.PL
@@ -317,7 +317,7 @@ else {
     $build->install_path(
         'MUNIN_HTMLDIR' => $build->install_path('var') . '/www/munin' );
     $build->install_path(
-        'MUNIN_DBDIR' => $build->install_path('var') . '/lib/munin' );
+        'MUNIN_DBDIR' => $build->install_path('var') . '/db/munin' );
     $build->install_path(
         'MUNIN_CGITMPDIR' => $build->install_path('var') . '/cache/munin' );
     $build->install_path(
