diff --git a/src/main/flight/autotune.c b/src/main/flight/autotune.c
index b36168e6bf..7c9cd8b3fc 100644
--- a/src/main/flight/autotune.c
+++ b/src/main/flight/autotune.c
@@ -129,7 +129,7 @@ static autotunePhase_e nextPhase = FIRST_TUNE_PHASE;
 
 static float targetAngle = 0;
 static float targetAngleAtPeak;
-static float firstPeakAngle, secondPeakAngle; // deci dgrees, 180 deg = 1800
+static float firstPeakAngle, secondPeakAngle; // in degrees
 
 typedef struct fp_pid {
     float p;