diff --git a/book/part02.rst b/book/part02.rst
index d76ee84d7c8..876b41b6b14 100644
--- a/book/part02.rst
+++ b/book/part02.rst
@@ -154,7 +154,7 @@ autoload the component::
 Now, let's rewrite our application by using the ``Request`` and the
 ``Response`` classes::
 
-    <php
+    <?php
 
     // framework/index.php