diff --git a/apps/btadv/app.js b/apps/btadv/app.js
index 87259e04d..cb1020035 100644
--- a/apps/btadv/app.js
+++ b/apps/btadv/app.js
@@ -352,13 +352,13 @@ var _a;
             case "E95D0753251D470AA062FA1922DFA9A8": {
                 var o = {};
                 if (acc_1 || initial) {
-                    o["0xE95DCA4B251D470AA062FA1922DFA9A8"] = {
+                    o["E95DCA4B251D470AA062FA1922DFA9A8"] = {
                         maxLen: encodeAcc_1.maxLen,
                         readable: true,
                         notify: true,
                     };
                     if (acc_1) {
-                        o["0xE95DCA4B251D470AA062FA1922DFA9A8"].value = encodeAcc_1(acc_1);
+                        o["E95DCA4B251D470AA062FA1922DFA9A8"].value = encodeAcc_1(acc_1);
                         acc_1 = undefined;
                     }
                 }
diff --git a/apps/btadv/app.ts b/apps/btadv/app.ts
index 8aeebd793..77ceb40c1 100644
--- a/apps/btadv/app.ts
+++ b/apps/btadv/app.ts
@@ -80,7 +80,7 @@ const enum BleChar {
   // org.microbit.characteristic.accelerometer_data
   // s16 x3, -1024 .. 1024
   // docs: https://lancaster-university.github.io/microbit-docs/ble/accelerometer-service/
-  Acc = "0xE95DCA4B251D470AA062FA1922DFA9A8",
+  Acc = "E95DCA4B251D470AA062FA1922DFA9A8",
 }
 
 type BleCharAdvert = {