diff --git a/xpfe/AppCores/public/MANIFEST b/xpfe/AppCores/public/MANIFEST
index 11715615ce36..8346d9842596 100644
--- a/xpfe/AppCores/public/MANIFEST
+++ b/xpfe/AppCores/public/MANIFEST
@@ -6,5 +6,5 @@ nsIDOMAppCores.h
 nsIDOMBaseAppCore.h
 nsIDOMMailCore.h
 nsIDOMToolbarCore.h
-nsIDOMBrowserApprCore.h
+nsIDOMBrowserAppCore.h
 nsAppCoresCIDs.h