diff --git a/apps/drained/app.js b/apps/drained/app.js
index 59c8ff690..0928f6440 100644
--- a/apps/drained/app.js
+++ b/apps/drained/app.js
@@ -5,7 +5,9 @@ if (typeof drainedInterval !== "undefined")
 Bangle.setLCDBrightness(0);
 var powerNoop = function () { return false; };
 var forceOff = function (name) {
-    Bangle._PWR[name] = [];
+    var _a;
+    if ((_a = Bangle._PWR) === null || _a === void 0 ? void 0 : _a[name])
+        Bangle._PWR[name] = [];
     Bangle["set".concat(name, "Power")](false, app);
     Bangle["set".concat(name, "Power")] = powerNoop;
 };
diff --git a/apps/drained/app.ts b/apps/drained/app.ts
index 2f1a72755..04f16ef09 100644
--- a/apps/drained/app.ts
+++ b/apps/drained/app.ts
@@ -11,7 +11,8 @@ Bangle.setLCDBrightness(0);
 const powerNoop = () => false;
 
 const forceOff = (name: "GPS" | "HRM" | "Compass" /*| "Barom"*/) => {
-  (Bangle as any)._PWR[name] = [];
+  if ((Bangle as any)._PWR?.[name])
+    (Bangle as any)._PWR[name] = [];
 
   // if(name === "Barom"){ setBarometerPower(...) }
   //                               ^^^^