diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/banglejs/BangleJSDeviceSupport.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/banglejs/BangleJSDeviceSupport.java
index 7a3496c92..9cdb0706e 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/banglejs/BangleJSDeviceSupport.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/banglejs/BangleJSDeviceSupport.java
@@ -514,8 +514,8 @@ public class BangleJSDeviceSupport extends AbstractBTLEDeviceSupport {
         }
     }
 
-    JSONArray tracksList;
-    int packetCount;
+    private JSONArray tracksList;
+    private int packetCount;
     private void handleUartRxJSON(JSONObject json) throws JSONException {
         String packetType = json.getString("t");
         switch (packetType) {