diff --git a/googleApps.mli b/googleApps.mli
index 37ecd99..7b375ad 100644
--- a/googleApps.mli
+++ b/googleApps.mli
@@ -246,6 +246,8 @@ sig
   val get_from : t -> string [@@js.call]
   val get_id : t -> string [@@js.call]
   val mark_read : t -> t [@@js.call]
+  val mark_unread : t -> t [@@js.call]
+  val is_unread : t -> bool [@@js.call]
 
   val get_thread : t -> thread [@@js.call]
   val get_messages : thread -> t list [@@js.call]