diff --git a/samples/hello_world.cr b/samples/hello_world.cr
index 9e490ae..c04f1d5 100644
--- a/samples/hello_world.cr
+++ b/samples/hello_world.cr
@@ -4,3 +4,5 @@ require "kemal"
 get "/" do
   "Hello Kemal!"
 end
+
+Kemal.run