diff --git a/user_guide_src/source/guides/api/code/013.php b/user_guide_src/source/guides/api/code/013.php
index d342cf4bfae9..4ae1102385ba 100644
--- a/user_guide_src/source/guides/api/code/013.php
+++ b/user_guide_src/source/guides/api/code/013.php
@@ -16,7 +16,7 @@ class BookModel extends Model
     public function withAuthorInfo()
     {
         return $this
-            ->select('book.*, author.id as author_id, author.name as author_name')
-            ->join('author', 'book.author_id = author.id');
+            ->select('books.*, authors.name as author_name')
+            ->join('authors', 'books.author_id = authors.id');
     }
 }