diff --git a/app/telemetry/MavlinkTelemetry.h b/app/telemetry/MavlinkTelemetry.h
index f39b7bcc9..edef2c436 100644
--- a/app/telemetry/MavlinkTelemetry.h
+++ b/app/telemetry/MavlinkTelemetry.h
@@ -35,6 +35,8 @@ class MavlinkTelemetry : public QObject
     MavlinkTelemetry(QObject *parent = nullptr);
     ~MavlinkTelemetry();
     static MavlinkTelemetry& instance();
+    // start / terminate needs a bit of care due to singleton usage,
+    // not clean, but works
     void start();
     void terminate();
     /**