diff --git a/core/modules/comment/src/CommentForm.php b/core/modules/comment/src/CommentForm.php
index b862f54..82cdea9 100644
--- a/core/modules/comment/src/CommentForm.php
+++ b/core/modules/comment/src/CommentForm.php
@@ -286,7 +286,7 @@ public function buildEntity(array $form, FormStateInterface $form_state) {
       $author_id = $this->currentUser->id();
     }
     $comment->setOwnerId($author_id);
-    if ($author_id > 0) {
+    if ($author_id !== 0) {
       // Update author name for authorized user.
       $comment->setAuthorName($comment->getAuthorName());
     }