diff --git a/tests/unit/fixtures/latedef-esnext.js b/tests/unit/fixtures/latedef-esnext.js
index 23f742a9ba..d72323a5ce 100644
--- a/tests/unit/fixtures/latedef-esnext.js
+++ b/tests/unit/fixtures/latedef-esnext.js
@@ -61,6 +61,7 @@ let dc = {
     }
 };
 
+// Regression test for gh-2658
 export function de() {}
 export class df {}
 export var dg;