diff --git a/examples/raspi_stepper_move.go b/examples/raspi_stepper_move.go
index 1e61c7c4..15495481 100644
--- a/examples/raspi_stepper_move.go
+++ b/examples/raspi_stepper_move.go
@@ -1,3 +1,7 @@
+// +build example
+//
+// Do not build by default.
+
 package main
 
 import (