diff --git a/mailnews/compose/public/MANIFEST b/mailnews/compose/public/MANIFEST
index 8f361176d774..023357602490 100644
--- a/mailnews/compose/public/MANIFEST
+++ b/mailnews/compose/public/MANIFEST
@@ -28,5 +28,4 @@ nsISmtpUrl.h
 nsISmtpService.h
 MsgCompGlue.h
 nsMsgSendLaterFact.h
-nsIMsgSendLater.h
 nsMsgComposeBE.h