diff --git a/docs/reference.md b/docs/reference.md
index 0632536d..0cbbf586 100644
--- a/docs/reference.md
+++ b/docs/reference.md
@@ -21,3 +21,4 @@ serial.writeNumber(0);
 control.inBackground(() => {
     
 });
+```
\ No newline at end of file