diff --git a/apps/btadv/app.js b/apps/btadv/app.js
index 82b5746bb..40551706a 100644
--- a/apps/btadv/app.js
+++ b/apps/btadv/app.js
@@ -235,7 +235,7 @@ var enableSensors = function () {
         gps = undefined;
     Bangle.setHRMPower(settings.hrm, "btadv");
     if (!settings.hrm)
-        hrm = undefined;
+        hrm = hrmAny = undefined;
     Bangle.setCompassPower(settings.mag, "btadv");
     if (!settings.mag)
         mag = undefined;
diff --git a/apps/btadv/app.ts b/apps/btadv/app.ts
index 8f3336ef6..35a123ce3 100644
--- a/apps/btadv/app.ts
+++ b/apps/btadv/app.ts
@@ -464,7 +464,7 @@ const enableSensors = () => {
 
   Bangle.setHRMPower(settings.hrm, "btadv");
   if (!settings.hrm)
-    hrm = undefined;
+    hrm = hrmAny = undefined;
 
   Bangle.setCompassPower(settings.mag, "btadv");
   if (!settings.mag)