diff --git a/mastus/mail.nix b/mastus/mail.nix
index 3764f26..ddc8302 100644
--- a/mastus/mail.nix
+++ b/mastus/mail.nix
@@ -56,7 +56,7 @@
       ssl_protocols = !SSLv2 !SSLv3
 
       service auth {
-        unix_listener /var/postfix/queue/private/auth {
+        unix_listener /var/lib/postfix/queue/private/auth {
           mode = 0660
           user = postfix
           group = postfix