diff --git a/mozilla/netwerk/base/public/MANIFEST_IDL b/mozilla/netwerk/base/public/MANIFEST_IDL
index 5783699d5d7..b1bc4aa4715 100644
--- a/mozilla/netwerk/base/public/MANIFEST_IDL
+++ b/mozilla/netwerk/base/public/MANIFEST_IDL
@@ -12,3 +12,4 @@ nsISocketTransportService.idl
 nsIFileTransportService.idl
 nsIFileSystem.idl
 nsIUnicharStreamLoader.idl
+nsIURLParser.idl