1 files changed, 1 insertions, 2 deletions
diff --git a/Combo.hs b/Combo.hs
index f4ab4b0..99dba29 100644
--- a/Combo.hs
+++ b/Combo.hs
@@ -1,5 +1,4 @@
-{-# OPTIONS_GHC -fallow-undecidable-instances #-}
-{-# LANGUAGE FlexibleInstances #-}
+{-# LANGUAGE FlexibleInstances, MultiParamTypeClasses, UndecidableInstances #-}
 
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