diff --git a/ArduPlane/Log.cpp b/ArduPlane/Log.cpp
index 85b88c7e66..8862992092 100644
--- a/ArduPlane/Log.cpp
+++ b/ArduPlane/Log.cpp
@@ -371,9 +371,10 @@ 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: Trans: Transistion state
+// @Field: Trn: Transistion state
+// @Field: Ast: Q assist active state
     { LOG_QTUN_MSG, sizeof(QuadPlane::log_QControl_Tuning),
-      "QTUN", "QffffffeccffB", "TimeUS,ThI,ABst,ThO,ThH,DAlt,Alt,BAlt,DCRt,CRt,TMix,Sscl,Trans", "s----mmmnn---", "F----00000-0-" },
+      "QTUN", "QffffffeccffBB", "TimeUS,ThI,ABst,ThO,ThH,DAlt,Alt,BAlt,DCRt,CRt,TMix,Sscl,Trn,Ast", "s----mmmnn----", "F----00000-0--" },
 
 // @LoggerMessage: AOA
 // @Description: Angle of attack and Side Slip Angle values
diff --git a/ArduPlane/quadplane.cpp b/ArduPlane/quadplane.cpp
index 1b1d58b42f..b8e144684d 100644
--- a/ArduPlane/quadplane.cpp
+++ b/ArduPlane/quadplane.cpp
@@ -2946,7 +2946,8 @@ void QuadPlane::Log_Write_QControl_Tuning()
         climb_rate          : int16_t(inertial_nav.get_velocity_z()),
         throttle_mix        : attitude_control->get_throttle_mix(),
         speed_scaler        : log_spd_scaler,
-        transition_state    : static_cast<uint8_t>(transition_state)
+        transition_state    : static_cast<uint8_t>(transition_state),
+        assist              : assisted_flight,
     };
     plane.logger.WriteBlock(&pkt, sizeof(pkt));
 
diff --git a/ArduPlane/quadplane.h b/ArduPlane/quadplane.h
index 25829bb9ba..d21ac91203 100644
--- a/ArduPlane/quadplane.h
+++ b/ArduPlane/quadplane.h
@@ -163,6 +163,7 @@ public:
         float    throttle_mix;
         float    speed_scaler;
         uint8_t  transition_state;
+        uint8_t  assist;
     };
 
     MAV_TYPE get_mav_type(void) const;