diff --git a/src/HelloWorld.php b/src/HelloWorld.php
index ca0d352cc25c5671f6115acae5ae5c4b11a908ba..360f40bb3ce6adbabd105b3321dc5d0ea1073256 100644
--- a/src/HelloWorld.php
+++ b/src/HelloWorld.php
@@ -1,5 +1,7 @@
 <?php
 
+namespace HelloWorld;
+
 final class HelloWorld {
 	public static function printHello(): string {
 		return "Hello World!";