diff --git a/msg/VehicleLocalPosition.msg b/msg/VehicleLocalPosition.msg
index fd7c6faa9d..c08b411728 100644
--- a/msg/VehicleLocalPosition.msg
+++ b/msg/VehicleLocalPosition.msg
@@ -39,8 +39,8 @@ float32 az        # Down velocity derivative in NED earth-fixed frame, (metres/s
 
 float32 heading				# Euler yaw angle transforming the tangent plane relative to NED earth-fixed frame, -PI..+PI,  (radians)
 float32 unaided_heading                 # Same as heading but generated by integrating corrected gyro data only
-float32 delta_heading
-uint8 heading_reset_counter
+float32 delta_heading			# Heading delta caused by latest heading reset [rad]
+uint8 heading_reset_counter		# Index of latest heading reset
 bool heading_good_for_control
 
 # Position of reference point (local NED frame origin) in global (GPS / WGS84) frame