diff --git a/test/js-perf-test/AsyncAwait/baseline-naive-promises.js b/test/js-perf-test/AsyncAwait/baseline-naive-promises.js
index bcd4719db6..c2cdc5d51b 100644
--- a/test/js-perf-test/AsyncAwait/baseline-naive-promises.js
+++ b/test/js-perf-test/AsyncAwait/baseline-naive-promises.js
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --ignore-unhandled-promises
-
 new BenchmarkSuite('BaselineNaivePromises', [1000], [
   new Benchmark('Basic', false, false, 0, Basic, Setup),
 ]);
diff --git a/test/js-perf-test/JSTests5.json b/test/js-perf-test/JSTests5.json
index 6d42cbdda9..996a537913 100644
--- a/test/js-perf-test/JSTests5.json
+++ b/test/js-perf-test/JSTests5.json
@@ -19,7 +19,7 @@
         "baseline-babel-es2017.js",
         "baseline-naive-promises.js"
       ],
-      "flags": ["--allow-natives-syntax"],
+      "flags": ["--allow-natives-syntax", "--ignore-unhandled-promises"],
       "results_regexp": "^%s\\-AsyncAwait\\(Score\\): (.+)$",
       "tests": [
         {"name": "BaselineES2017"},