diff --git a/ESP-IDF_Robot/main/rc.h b/ESP-IDF_Robot/main/rc.h
index 6d982b14b..354fa6a24 100644
--- a/ESP-IDF_Robot/main/rc.h
+++ b/ESP-IDF_Robot/main/rc.h
@@ -118,6 +118,7 @@ static void update_pwm (int rc_x, int rc_y) {
         m.motor3_rpm_pcm = -(y - x);
         m.motor4_rpm_pcm = 0;
     }
+    // Rotate right
     if ((y < 1500) && (y > -1500) && (x < -8000)) {
         m.motor1_rpm_pcm = 0;
         m.motor2_rpm_pcm = (y + x);