diff --git a/appendices/migration4.xml b/appendices/migration4.xml
index f64f8a7d2b..fffeba7439 100644
--- a/appendices/migration4.xml
+++ b/appendices/migration4.xml
@@ -269,9 +269,9 @@
    </para>
    <para>
     To embed the value of an object member variable into a string you
-    simply write <literal>"text {$obj->member} text"</literal> while
+    simply write <literal>"text {$obj-&gt;member} text"</literal> while
     in PHP 3.0 you had to use something like <literal>"text
-    ".$obj->member." text"</literal>.
+    ".$obj-&gt;member." text"</literal>.
    </para>
    <para>
     This should lead to more readable code, while it may break