diff --git a/docs/change-log.md b/docs/change-log.md
index 8fb182f8..273cd0b1 100644
--- a/docs/change-log.md
+++ b/docs/change-log.md
@@ -13,6 +13,7 @@
 
 -	fix routing bug in IE9 [#320](https://github.com/lhorie/mithril.js/issues/320)
 -	fix ordering bug in m.trust when using HTML entities [#453](https://github.com/lhorie/mithril.js/issues/453)
+-	set promise's default value to initialValue if coming from m.request [#454](https://github.com/lhorie/mithril.js/issues/454)
 
 ---
 
diff --git a/docs/mithril.request.md b/docs/mithril.request.md
index ad89a482..2b474861 100644
--- a/docs/mithril.request.md
+++ b/docs/mithril.request.md
@@ -433,8 +433,8 @@ where:
 		[Object<any> data,]
 		[Boolean background,]
 		[any initialValue,]
-		[any unwrapSuccess(any data),]
-		[any unwrapError(any data),]
+		[any unwrapSuccess(any data, XMLHttpRequest xhr),]
+		[any unwrapError(any data, XMLHttpRequest xhr),]
 		[String serialize(any dataToSerialize),]
 		[any deserialize(String dataToDeserialize),]
 		[any extract(XMLHttpRequest xhr, XHROptions options),]