diff --git a/api/src/tree_sitter.rs b/api/src/tree_sitter.rs
index 95b1e7ed..f43e9fa6 100644
--- a/api/src/tree_sitter.rs
+++ b/api/src/tree_sitter.rs
@@ -1,3 +1,4 @@
+// Copyright 2024 the JSR authors. All rights reserved. MIT license.
 use std::collections::HashMap;
 use std::io::Write;
 use std::sync::OnceLock;