diff --git a/tests/3_lis/test.js b/tests/3_lis/test.js
index 878a560..a2cbc47 100644
--- a/tests/3_lis/test.js
+++ b/tests/3_lis/test.js
@@ -12,6 +12,6 @@ export default {
     const nums = [10, 9, 2, 5, 3, 7, 101, 18, 4, 6];
     const length = await findLISLength(nums);
     assert.strictEqual(length, 4, "Test Failed: LIS length should be 4.");
-    return length;
   }
 };
+