diff --git a/nixos/modules/services/backup/duplicati.nix b/nixos/modules/services/backup/duplicati.nix
index 80287f30b81..a3af3d9b5c9 100644
--- a/nixos/modules/services/backup/duplicati.nix
+++ b/nixos/modules/services/backup/duplicati.nix
@@ -19,7 +19,7 @@ in
       };
 
       interface = mkOption {
-        default = "lo";
+        default = "127.0.0.1";
         type = types.str;
         description = ''
           Listening interface for the web UI