diff --git a/core/modules/serialization/tests/src/Unit/Encoder/XmlEncoderTest.php b/core/modules/serialization/tests/src/Unit/Encoder/XmlEncoderTest.php
index f84270397b..b0ee6b3754 100644
--- a/core/modules/serialization/tests/src/Unit/Encoder/XmlEncoderTest.php
+++ b/core/modules/serialization/tests/src/Unit/Encoder/XmlEncoderTest.php
@@ -83,8 +83,8 @@ public function testDecode() {
     * @covers ::getBaseEncoder
     */
   public function testDefaultEncoderHasSerializer() {
-     // The serializer should being set on the Drupal encoder should then set it
-     // on our default encoder.
+     // The serializer should be set on the Drupal encoder, which should then
+     // set it on our default encoder.
      $encoder = new XmlEncoder();
      $serialzer = new Serializer([new GetSetMethodNormalizer()]);
      $encoder->setSerializer($serialzer);