diff --git a/tests/baselines/reference/jsFileCompilationBindDuplicateIdentifier.errors.txt b/tests/baselines/reference/jsFileCompilationBindDuplicateIdentifier.errors.txt
new file mode 100644
index 00000000000..2816eaee8b4
--- /dev/null
+++ b/tests/baselines/reference/jsFileCompilationBindDuplicateIdentifier.errors.txt
@@ -0,0 +1,12 @@
+tests/cases/compiler/a.js(1,5): error TS2300: Duplicate identifier 'a'.
+tests/cases/compiler/a.js(2,7): error TS2300: Duplicate identifier 'a'.
+
+
+==== tests/cases/compiler/a.js (2 errors) ====
+    var a = 10;
+        ~
+!!! error TS2300: Duplicate identifier 'a'.
+    class a {
+          ~
+!!! error TS2300: Duplicate identifier 'a'.
+    }
\ No newline at end of file
diff --git a/tests/cases/compiler/jsFileCompilationBindDuplicateIdentifier.ts b/tests/cases/compiler/jsFileCompilationBindDuplicateIdentifier.ts
new file mode 100644
index 00000000000..3433adc17d5
--- /dev/null
+++ b/tests/cases/compiler/jsFileCompilationBindDuplicateIdentifier.ts
@@ -0,0 +1,6 @@
+// @allowJs: true
+// @noEmit: true
+// @filename: a.js
+var a = 10;
+class a {
+}
\ No newline at end of file