diff --git a/libraries/Stepper/examples/MotorKnob/MotorKnob.pde b/libraries/Stepper/examples/MotorKnob/MotorKnob.pde
index 062cac93b..d42818634 100644
--- a/libraries/Stepper/examples/MotorKnob/MotorKnob.pde
+++ b/libraries/Stepper/examples/MotorKnob/MotorKnob.pde
@@ -5,6 +5,7 @@
  * (or other sensor) on analog input 0.
  *
  * http://www.arduino.cc/en/Reference/Stepper
+ * This example code is in the public domain.
  */
 
 #include <Stepper.h>