diff --git a/packages/core/integration-tests/test/html.js b/packages/core/integration-tests/test/html.js
index 5ec98f3b388..24389970b1b 100644
--- a/packages/core/integration-tests/test/html.js
+++ b/packages/core/integration-tests/test/html.js
@@ -329,8 +329,8 @@ describe('html', function() {
// mergeStyles
assert(
- html.includes(
- '',
+ html.match(
+ /'));
+ assert(
+ html.match(
+ /