diff --git a/README.md b/README.md
index 5ca22fff..39d71354 100644
--- a/README.md
+++ b/README.md
@@ -235,7 +235,8 @@ or any of its children.
Copies the [key,value]
pairs of this YMap to a new Object.It
transforms all child types to JSON using their toJSON
method.
- forEach(function(key:string,value:object|boolean|Array|string|number|Uint8Array|Y.Type))
+ forEach(function(value:object|boolean|Array|string|number|Uint8Array|Y.Type,
+ key:string, map: Y.Map))
A container that holds an Array of Y.XmlElements.