fixed a mistake in note for extending classes
diff --git a/user_guide/general/creating_libraries.html b/user_guide/general/creating_libraries.html
index c54549e..6a4773b 100644
--- a/user_guide/general/creating_libraries.html
+++ b/user_guide/general/creating_libraries.html
@@ -76,7 +76,7 @@
<p>The page below explains these three concepts in detail.</p>
<p class="important"><strong>Note:</strong> The Database classes can not be extended or replaced with your own classes,
-nor can the main Controller class. All other classes are able to be replaced/extended.</p>
+nor can the Loader class in PHP 4. All other classes are able to be replaced/extended.</p>
<h2>Storage</h2>