diff --git a/pwm/pwm_fade.py b/pwm/pwm_fade.py
index 7264eda..5a10554 100644
--- a/pwm/pwm_fade.py
+++ b/pwm/pwm_fade.py
@@ -5,7 +5,7 @@ from machine import Pin, PWM
 
 
 # Construct PWM object, with LED on Pin(25).
-pwm = PWM(Pin(25))
+pwm = PWM(Pin("LED"))
 
 # Set the PWM frequency.
 pwm.freq(1000)