diff --git a/modules/backrest/default.nix b/modules/backrest/default.nix
index 0a2953e..8651fbe 100644
--- a/modules/backrest/default.nix
+++ b/modules/backrest/default.nix
@@ -22,6 +22,7 @@ let
           "-o 'sftp.args=-i /root/.ssh/id_ed25519 -o StrictHostKeyChecking=accept-new'"
         ];
         autoInitialize = false;
+        guid = "15448172d015919712f015508d40e28d13db4c9e877bf545454c8289ad621069";
         prunePolicy = {
           schedule = {
             disabled = true;