diff --git a/git_system.nix b/git_system.nix
index cbea9e0..34b1c3d 100644
--- a/git_system.nix
+++ b/git_system.nix
@@ -61,8 +61,8 @@ in
           ENABLED = true;
           SMTP_ADDR = "80.151.91.109";
           SMTP_PORT = 25;
-          FROM = "noreply@$ptspaper.de";
-          USER = "noreply@$ptspaper.de";
+          FROM = "noreply@ptspaper.de";
+          USER = "noreply@ptspaper.de";
         };
       };
       dump = {