diff --git a/site.conf b/site.conf
index 159355c93f1e52475a01e878de2eaf75f53f6afc..07e1cb64ca8ce4f0a578205b1a2f0ca869856cd2 100644
--- a/site.conf
+++ b/site.conf
@@ -1,5 +1,5 @@
 {
-        hostname_prefix = 'ffs',
+        hostname_prefix = 'ffs-',
         site_name = 'Freifunk Stuttgart',
         site_code = 'ffs',