diff --git a/site.conf b/site.conf
index 845bf36..97f2b6b 100644
--- a/site.conf
+++ b/site.conf
@@ -2,7 +2,7 @@
 	hostname_prefix => 'freifunk',
 	site_name => 'Freifunk Lübeck',
 	site_code => 'ffhl',
-	release => '0.4',
+	release => '0.4-exp' . nightly,
 
 	prefix4 => '10.130.0.0/20',
 	prefix6 => 'fdef:ffc0:3dd7::/64',