diff --git a/modules/backrest/default.nix b/modules/backrest/default.nix
index 8651fbe..86a080c 100644
--- a/modules/backrest/default.nix
+++ b/modules/backrest/default.nix
@@ -17,7 +17,7 @@ let
       {
         id = "dnsc-storage";
         uri = "sftp:dnsc-storage:restic/dnsc-server";
-        password = "file:${config.age.secrets."restic/password".path}";
+        env = [ "RESTIC_PASSWORD_FILE=${config.age.secrets."restic/password".path}" ];
         flags = [
           "-o 'sftp.args=-i /root/.ssh/id_ed25519 -o StrictHostKeyChecking=accept-new'"
         ];