diff --git a/semantic-tsx/src/Language/TSX/AST.hs b/semantic-tsx/src/Language/TSX/AST.hs
index 739522ea5..15374315e 100644
--- a/semantic-tsx/src/Language/TSX/AST.hs
+++ b/semantic-tsx/src/Language/TSX/AST.hs
@@ -8,6 +8,7 @@
 {-# LANGUAGE GeneralizedNewtypeDeriving #-}
 {-# LANGUAGE KindSignatures #-}
 {-# LANGUAGE MultiParamTypeClasses #-}
+{-# LANGUAGE StandaloneDeriving #-}
 {-# LANGUAGE TemplateHaskell #-}
 {-# LANGUAGE TypeApplications #-}