diff --git a/crates/swc_ecma_minifier/tests/compress/fixture/next/36127/2/input.js b/crates/swc_ecma_minifier/tests/compress/fixture/next/36127/2/input.js
new file mode 100644
index 000000000000..e37927aca72b
--- /dev/null
+++ b/crates/swc_ecma_minifier/tests/compress/fixture/next/36127/2/input.js
@@ -0,0 +1,19 @@
+/**
+ * Create a code check from a regex.
+ *
+ * @param {RegExp} regex
+ * @returns {(code: Code) => code is number}
+ */
+function regexCheck(regex) {
+    return check
+
+    /**
+     * Check whether a code matches the bound regex.
+     *
+     * @param {Code} code Character code
+     * @returns {code is number} Whether the character code matches the bound regex
+     */
+    function check(code) {
+        return code !== null && regex.test(String.fromCharCode(code))
+    }
+}
\ No newline at end of file