diff --git a/libs/microbit-devices/devices.cpp b/libs/microbit-devices/devices.cpp
index 61509e58..880a7ef4 100644
--- a/libs/microbit-devices/devices.cpp
+++ b/libs/microbit-devices/devices.cpp
@@ -188,7 +188,7 @@ namespace devices {
     static void initSignalStrength() {
         if (_signalStrength < 0) {
             _signalStrength = 0;
-            uBit.MessageBus.listen(MES_SIGNAL_STRENGTH_ID, MICROBIT_EVT_ANY, signalStrengthHandler);
+            uBit.messageBus.listen(MES_SIGNAL_STRENGTH_ID, MICROBIT_EVT_ANY, signalStrengthHandler);
         }        
     }
     
diff --git a/pxtarget.json b/pxtarget.json
index c46d4054..8d211820 100644
--- a/pxtarget.json
+++ b/pxtarget.json
@@ -5,7 +5,9 @@
     "corepkg": "microbit",
     "bundleddirs": [
         "libs/microbit",
-        "libs/microbit-radio"
+        "libs/microbit-radio",
+        "libs/microbit-devices",
+        "libs/neopixel"
     ],
     "cloud": {
         "workspace": false,
@@ -105,10 +107,6 @@
             {
                 "name": "Lessons",
                 "path": "/lessons"
-            },
-            {
-                "name": "Device",
-                "path": "/device"
             }
         ],
         "sideDoc": "getting-started"