diff --git a/language/oop5/basic.xml b/language/oop5/basic.xml
index a0533f9dda..6f5ec49429 100644
--- a/language/oop5/basic.xml
+++ b/language/oop5/basic.xml
@@ -380,6 +380,14 @@ NS\ClassName
      </screen>
     </example>
    </para>
+   <note>
+    <para>The class name resolution using <literal>::class</literal> is a
+     compile time transformation. That means at the time the class name string
+     is created no autoloading has happened yet. As a consequence, class names
+     are expanded even if the class does not exist. No error is issued in
+     that case.
+    </para>
+   </note>
   </sect2>
  </sect1>