diff --git a/src/protocol/ast.rs b/src/protocol/ast.rs
index 3768723cfe9b4a64bf1f1ab077d2d1e3ba2ad71d..83ae094fbfd5a4aad116353aef5f60c9c8c6c1f5 100644
--- a/src/protocol/ast.rs
+++ b/src/protocol/ast.rs
@@ -1731,6 +1731,7 @@ pub enum Literal {
     Enum(LiteralEnum),
     Union(LiteralUnion),
     Array(Vec<ExpressionId>),
+    Tuple(Vec<ExpressionId>),
 }
 
 impl Literal {