diff --git a/libs/microbit-bluetooth/bluetooth.cpp b/libs/microbit-bluetooth/bluetooth.cpp
index 81585e9d..3d668351 100644
--- a/libs/microbit-bluetooth/bluetooth.cpp
+++ b/libs/microbit-bluetooth/bluetooth.cpp
@@ -84,8 +84,8 @@ namespace bluetooth {
     /**
     *  Starts the Bluetooth UART service
     */
-    // help=bluetooth/start-uart-service
-    // blockId=bluetooth_start_uart_service block="bluetooth uart service" blockGap=8
+    //% help=bluetooth/start-uart-service
+    //% blockId=bluetooth_start_uart_service block="bluetooth uart service" blockGap=8
     void startUartService() {
         if (uart) return;
         // 61 octet buffer size is 3 x (MTU - 3) + 1
diff --git a/libs/microbit-bluetooth/shims.d.ts b/libs/microbit-bluetooth/shims.d.ts
index 0606d684..2cbc3c0c 100644
--- a/libs/microbit-bluetooth/shims.d.ts
+++ b/libs/microbit-bluetooth/shims.d.ts
@@ -49,6 +49,13 @@ declare namespace bluetooth {
     //% blockId=bluetooth_start_button_service block="bluetooth button service" blockGap=8 shim=bluetooth::startButtonService
     function startButtonService(): void;
 
+    /**
+     *  Starts the Bluetooth UART service
+     */
+    //% help=bluetooth/start-uart-service
+    //% blockId=bluetooth_start_uart_service block="bluetooth uart service" blockGap=8 shim=bluetooth::startUartService
+    function startUartService(): void;
+
     /**
      *  Writes to the Bluetooth UART service buffer. From there the data is transmitted over Bluetooth to a connected device.
      */