diff --git a/semantic-tsx/src/Language/TSX/AST.hs b/semantic-tsx/src/Language/TSX/AST.hs
index 15374315e..82ba645ae 100644
--- a/semantic-tsx/src/Language/TSX/AST.hs
+++ b/semantic-tsx/src/Language/TSX/AST.hs
@@ -11,6 +11,7 @@
 {-# LANGUAGE StandaloneDeriving #-}
 {-# LANGUAGE TemplateHaskell #-}
 {-# LANGUAGE TypeApplications #-}
+{-# LANGUAGE TypeOperators #-}
 
 module Language.TSX.AST
 ( module Language.TSX.AST