diff --git a/Input-Calibration.md b/Input-Calibration.md
index 2a31693..7116af5 100644
--- a/Input-Calibration.md
+++ b/Input-Calibration.md
@@ -78,7 +78,7 @@ For Normal pots:
 For Mid-resting pots:
 * INPUT_MIN(-1000) <----------0< Deadband >0----------> INPUT_MAX(1000)<br>
 
-This is for example used with [PWM](https://github.com/EFeru/hoverboard-firmware-hack-FOC/wiki/Variant-PWM) variant to prevent jitters around 0 value due to signal noise.<br> This can get even worse in Speed mode as a smaller input will make the wheel turn compared to Voltage mode.
+This is for example used with [PWM](https://github.com/EFeru/hoverboard-firmware-hack-FOC/wiki/Variant-PWM) or [PPM](https://github.com/EFeru/hoverboard-firmware-hack-FOC/wiki/Variant-PPM) variant to prevent jitters around 0 value due to signal noise.<br> This can get even worse in Speed mode as a smaller input will make the wheel turn compared to Voltage mode.<br>
 It can also help in addition to the auto-calibration if your joystick is not perfectly centered.<br>
 
 # Auto-calibration: