diff --git a/mozilla/layout/base/public/MANIFEST_IDL b/mozilla/layout/base/public/MANIFEST_IDL
index d0c2cac73ff..644779527fa 100644
--- a/mozilla/layout/base/public/MANIFEST_IDL
+++ b/mozilla/layout/base/public/MANIFEST_IDL
@@ -6,5 +6,5 @@ nsIChromeEventHandler.idl
 nsISelectionController.idl
 nsISelection.idl
 nsISelectionPrivate.idl
-nsISelectionListner.idl
+nsISelectionListener.idl
 nsIContentPolicy.idl