diff --git a/apps/oxlint/src-js/plugins/location.ts b/apps/oxlint/src-js/plugins/location.ts
index 030e5dfa9d68b..be8cae69bc807 100644
--- a/apps/oxlint/src-js/plugins/location.ts
+++ b/apps/oxlint/src-js/plugins/location.ts
@@ -66,6 +66,12 @@ export function initLines(): void {
   if (sourceText === null) initSourceText();
   debugAssertIsNonNull(sourceText);
 
+  // TODO: ESLint freezes `lines`, but doesn't freeze `lineStartIndices`.
+  // Should we freeze them? Upside is it would prevent user mutating them, but on downside would prevent us re-using
+  // the same arrays for multiple files. Maybe we shouldn't bother, in same way that we don't freeze the AST.
+  // Once we introduce lazy deserialization, presumably we'll use proxy arrays (like `NodeArray`), which will make
+  // them immutable by user. Maybe we can leave it until then. (@overlookmotel)
+
   // This implementation is based on the one in ESLint.
   // TODO: Investigate if using `String.prototype.matchAll` is faster.
   // This comment is above ESLint's implementation: