diff --git a/reference/info/functions/get-defined-constants.xml b/reference/info/functions/get-defined-constants.xml
index 7c99325523..a1a8bb6746 100644
--- a/reference/info/functions/get-defined-constants.xml
+++ b/reference/info/functions/get-defined-constants.xml
@@ -44,7 +44,7 @@ print_r(get_defined_constants(true));
 <![CDATA[
 Array
 (
-    [internal] => Array
+    [Core] => Array
         (
             [E_ERROR] => 1
             [E_WARNING] => 2
@@ -107,6 +107,13 @@ Array
       </row>
      </thead>
      <tbody>
+      <row>
+       <entry>5.2.9</entry>
+       <entry>
+        Core constants are categorized under <literal>Core</literal>,
+        previously <literal>internal</literal>.
+       </entry>
+      </row>
       <row>
        <entry>5.0.0</entry>
        <entry>