diff --git a/_demo/hello/hello.go b/_demo/hello/hello.go
index 18a35ca0..4b358dda 100644
--- a/_demo/hello/hello.go
+++ b/_demo/hello/hello.go
@@ -11,7 +11,3 @@ func main() {
 	fmt.Println("hello world by fmt.Println")
 	c.Printf(c.Str("Hello world by c.Printf\n"))
 }
-
-/* Expected output:
-Hello world
-*/