diff --git a/servo/components/script/dom/xmlhttprequest.rs b/servo/components/script/dom/xmlhttprequest.rs
index a1d0529366b58..c84df0e7228ba 100644
--- a/servo/components/script/dom/xmlhttprequest.rs
+++ b/servo/components/script/dom/xmlhttprequest.rs
@@ -7650,7 +7650,9 @@ HeadersReceived
 {
 self
 .
-change_ready_state
+ready_state
+.
+set
 (
 XMLHttpRequestState
 :
@@ -7658,12 +7660,62 @@ XMLHttpRequestState
 Loading
 )
 ;
+}
+let
+global
+=
+self
+.
+global
+(
+)
+;
+let
+event
+=
+Event
+:
+:
+new
+(
+global
+.
+r
+(
+)
+atom
+!
+(
+"
+readystatechange
+"
+)
+EventBubbles
+:
+:
+DoesNotBubble
+EventCancelable
+:
+:
+Cancelable
+)
+;
+event
+.
+fire
+(
+self
+.
+upcast
+(
+)
+)
+;
 return_if_fetch_was_terminated
 !
 (
 )
 ;
-}
 self
 .
 dispatch_response_progress_event