diff --git a/core/modules/comment/lib/Drupal/comment/Tests/CommentInterfaceTest.php b/core/modules/comment/lib/Drupal/comment/Tests/CommentInterfaceTest.php
index c19ee80..8e0d1d4 100644
--- a/core/modules/comment/lib/Drupal/comment/Tests/CommentInterfaceTest.php
+++ b/core/modules/comment/lib/Drupal/comment/Tests/CommentInterfaceTest.php
@@ -98,7 +98,7 @@ function testCommentInterface() {
     $this->assertEqual($comment->id(), $reply_loaded->pid->target_id, 'Pid of a reply to a comment is set correctly.');
     $this->assertEqual(rtrim($comment->thread->value, '/') . '.00/', $reply_loaded->thread->value, 'Thread of reply grows correctly.');
 
-    // Second reply to comment #3 creating comment #4.
+    // Second reply to comment #2 creating comment #4.
     $this->drupalGet('comment/reply/' . $this->node->id() . '/' . $comment->id());
     $this->assertText($subject_text, 'Individual comment-reply subject found.');
     $this->assertText($comment_text, 'Individual comment-reply body found.');