diff --git a/tests/BlogTagTest.php b/tests/BlogTagTest.php
index d7705d2..c0d5324 100755
--- a/tests/BlogTagTest.php
+++ b/tests/BlogTagTest.php
@@ -61,14 +61,15 @@ class BlogTagTest extends FunctionalTest
      */
     public function testAllowMultibyteUrlSegment()
     {
+        /** @var Blog $blog */
         $blog = $this->objFromFixture(Blog::class, 'FirstBlog');
         $tag = new BlogTag();
-        $tag->BlogID = $blog->ID;
+        $tag->setBlogID($blog->ID);
         $tag->Title = 'تست';
         $tag->write();
         // urlencoded
         $this->assertEquals('%D8%AA%D8%B3%D8%AA', $tag->URLSegment);
-        $link = Controller::join_links($tag->Blog()->Link(), 'tag', '%D8%AA%D8%B3%D8%AA');
+        $link = Controller::join_links($blog->Link(), 'tag', '%D8%AA%D8%B3%D8%AA');
         $this->assertEquals($link, $tag->getLink());
     }