diff --git a/doc/classes/Dictionary.xml b/doc/classes/Dictionary.xml
index 9526bc8da18..c14f0ec2a64 100644
--- a/doc/classes/Dictionary.xml
+++ b/doc/classes/Dictionary.xml
@@ -76,7 +76,7 @@
 			<argument index="0" name="deep" type="bool" default="false">
 			</argument>
 			<description>
-				Creates a copy of the dictionary, and returns it.
+				Creates a copy of the dictionary, and returns it. The [code]deep[/code] parameter causes inner dictionaries and arrays to be copied recursively, but does not apply to objects.
 			</description>
 		</method>
 		<method name="empty">