diff --git a/tests/mocha/run_mocha_tests_in_browser.js b/tests/mocha/run_mocha_tests_in_browser.js
index 5a0b0b7f6..88f1b9d4b 100644
--- a/tests/mocha/run_mocha_tests_in_browser.js
+++ b/tests/mocha/run_mocha_tests_in_browser.js
@@ -40,7 +40,7 @@ async function runMochaTestsInBrowser() {
     var elem = await browser.$('#failureCount');
     var text = await elem.getAttribute('tests_failed');
     return text != 'unset';
-  }, 22000);
+  }, 33000);
 
   const elem = await browser.$('#failureCount');
   const numOfFailure = await elem.getAttribute('tests_failed');