diff --git a/module.nix b/module.nix
index 99fc6a4..852c12a 100644
--- a/module.nix
+++ b/module.nix
@@ -63,16 +63,15 @@ in {
         environment = {
           PRICEBOT_EXCHANGE_HOST = cfg.exchange-host;
           PRICEBOT_BEBOT_URL = cfg.mattermost-url;
-          PRICEBOT_BEBOT_AUTH_TOKEN_FILE = "%T/auth.token";
+          PRICEBOT_BEBOT_AUTH_TOKEN_FILE = "$CREDENTIALS_DIRECTORY/auth.token";
           PRICEBOT_BEBOT_CHANNEL_ID = opts.mattermost-channel-id;
           PRICEBOT_TARGET_CURRENCY = opts.currency;
           PRICEBOT_NOTIFY_USER = opts.notify-user;
         };
         serviceConfig = {
           ExecStart = "${pricebot}/bin/pricebot";
-          ExecStartPre =
-            "+${pkgs.coreutils-full}/bin/install --owner=%u --mode=400 -T ${cfg.mattermost-auth-token-file} %T/auth.token";
           DynamicUser = true;
+          LoadCredential = "auth.token:${cfg.mattermost-auth-token-file}";
           PrivateTmp = true;
           PrivateDevices = true;
           ProtectSystem = "strict";