diff --git a/src/Syntax.hs b/src/Syntax.hs
index 3e77ac1be..f74a368f0 100644
--- a/src/Syntax.hs
+++ b/src/Syntax.hs
@@ -88,6 +88,7 @@ data Syntax a f
   | Defer f
   | TypeAssertion f f
   | TypeConversion f f
+  | Break f
   deriving (Eq, Foldable, Functor, Generic, Generic1, Mergeable, Ord, Show, Traversable, ToJSON)