diff --git a/src/Hanafuda/KoiKoi/Yaku.hs b/src/Hanafuda/KoiKoi/Yaku.hs
index 712f17a..e8b5502 100644
--- a/src/Hanafuda/KoiKoi/Yaku.hs
+++ b/src/Hanafuda/KoiKoi/Yaku.hs
@@ -1,5 +1,10 @@
 {-# LANGUAGE NamedFieldPuns #-}
-module Hanafuda.KoiKoi.Yaku where
+module Hanafuda.KoiKoi.Yaku (
+      Score
+    , Yaku(..)
+    , meldInto
+    , sumYakus
+  ) where
 
 import Hanafuda (Card(..), Monthly, Pack, add, contains, intersection, packOfCards, size)
 import Hanafuda.Player (Points)