diff --git a/core/modules/rest/lib/Drupal/rest/Tests/Views/StyleSerializerTest.php b/core/modules/rest/lib/Drupal/rest/Tests/Views/StyleSerializerTest.php
index 8a62fe1..be59700 100644
--- a/core/modules/rest/lib/Drupal/rest/Tests/Views/StyleSerializerTest.php
+++ b/core/modules/rest/lib/Drupal/rest/Tests/Views/StyleSerializerTest.php
@@ -129,7 +129,7 @@ public function testSerializerResponses() {
     // Test that the default output will be JSON if html is requested.
     $expected = $serializer->serialize($entities, 'json');
     $actual = $this->drupalGet('test/serialize/entity');
-    $this->assertIdentical($actual, $expected, 'If hal module is enabled by default hal_json output is returned.');
+    $this->assertIdentical($actual, $expected, 'If json module is enabled by default json output is returned.');
   }
 
   /**