1 files changed, 1 insertions, 0 deletions
diff --git a/Parser.hs b/Parser.hs
index fd5adcb..27f4f59 100644
--- a/Parser.hs
+++ b/Parser.hs
@@ -7,6 +7,7 @@
 {-# LANGUAGE StandaloneDeriving #-}
 {-# LANGUAGE TypeFamilies #-}
 {-# LANGUAGE RankNTypes #-}
+{-# LANGUAGE TypeOperators #-}
 module Parser (
   parse,
   printErrMsg,