diff --git a/ArduPlane/Log.cpp b/ArduPlane/Log.cpp
index 4dde2e5dbe..374b612ade 100644
--- a/ArduPlane/Log.cpp
+++ b/ArduPlane/Log.cpp
@@ -377,8 +377,8 @@ const struct LogStructure Plane::log_structure[] = {
 // @Field: CRt: climb rate
 // @Field: TMix: transition throttle mix value
 // @Field: Sscl: speed scalar for tailsitter control surfaces
-// @Field: Trn: Transistion state
-// @Field: Ast: Q assist active state
+// @Field: Trn: Transition state: 0-AirspeedWait,1-Timer,2-Done / TailSitter: 0-FW Wait,1-VTOL Wait,2-Done
+// @Field: Ast: Q assist active
 #if HAL_QUADPLANE_ENABLED
     { LOG_QTUN_MSG, sizeof(QuadPlane::log_QControl_Tuning),
       "QTUN", "QffffffeccffBB", "TimeUS,ThI,ABst,ThO,ThH,DAlt,Alt,BAlt,DCRt,CRt,TMix,Sscl,Trn,Ast", "s----mmmnn----", "F----00000-0--" , true },