diff --git a/Code/Python_Code/08.1.1_Softlight/Softlight.py b/Code/Python_Code/08.1.1_Softlight/Softlight.py
index 568a152..2a753bf 100644
--- a/Code/Python_Code/08.1.1_Softlight/Softlight.py
+++ b/Code/Python_Code/08.1.1_Softlight/Softlight.py
@@ -38,6 +38,7 @@ def loop():
         time.sleep(0.03)
 
 def destroy():
+    GPIO.cleanup()
     adc.close()
     
 if __name__ == '__main__':   # Program entrance