diff --git a/reference/reflection/reflectionparameter/getdeclaringclass.xml b/reference/reflection/reflectionparameter/getdeclaringclass.xml
index 04e1e0fa2e..cee5497f0b 100644
--- a/reference/reflection/reflectionparameter/getdeclaringclass.xml
+++ b/reference/reflection/reflectionparameter/getdeclaringclass.xml
@@ -29,7 +29,7 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   A <classname>ReflectionClass</classname> object.
+   A <classname>ReflectionClass</classname> object or &null; if called on function.
   </para>
  </refsect1>