diff --git a/apps/drained/boot.js b/apps/drained/boot.js
index b71db0d92..48c1572bd 100644
--- a/apps/drained/boot.js
+++ b/apps/drained/boot.js
@@ -1,13 +1,13 @@
-{
-    var _a = require("Storage").readJSON("drained.setting.json", true) || {}, _b = _a.battery, threshold_1 = _b === void 0 ? 5 : _b, _c = _a.interval, interval = _c === void 0 ? 10 : _c, _d = _a.keepStartup, keepStartup_1 = _d === void 0 ? true : _d;
+(function () {
+    var _a = require("Storage").readJSON("drained.setting.json", true) || {}, _b = _a.battery, threshold = _b === void 0 ? 5 : _b, _c = _a.interval, interval = _c === void 0 ? 10 : _c, _d = _a.keepStartup, keepStartup = _d === void 0 ? true : _d;
     drainedInterval = setInterval(function () {
         if (Bangle.isCharging())
             return;
-        if (E.getBattery() > threshold_1)
+        if (E.getBattery() > threshold)
             return;
         var app = "drained.app.js";
-        if (!keepStartup_1)
+        if (!keepStartup)
             require("Storage").write(".boot0", "if(typeof __FILE__ === \"undefined\" || __FILE__ !== \"".concat(app, "\") setTimeout(load, 100, \"").concat(app, "\");"));
         load(app);
     }, interval * 60 * 1000);
-}
+})();
diff --git a/apps/drained/boot.ts b/apps/drained/boot.ts
index 3675e06e6..1fcb0591b 100644
--- a/apps/drained/boot.ts
+++ b/apps/drained/boot.ts
@@ -1,4 +1,4 @@
-{
+(() => {
 const { battery: threshold = 5, interval = 10, keepStartup = true }: DrainedSettings
   = require("Storage").readJSON(`drained.setting.json`, true) || {};
 
@@ -18,4 +18,4 @@ drainedInterval = setInterval(() => {
 
   load(app);
 }, interval * 60 * 1000);
-}
+})()