diff --git a/language/tests/system.py b/language/tests/system.py
index 5802744762fa2..a3c98803c137a 100644
--- a/language/tests/system.py
+++ b/language/tests/system.py
@@ -130,7 +130,7 @@ def _verify_token(self, token, text_content, part_of_speech, lemma):
 
         self.assertIsInstance(token, Token)
         self.assertEqual(token.text_content, text_content)
-        self.assertEqual(token.part_of_speech, part_of_speech)
+        self.assertEqual(token.part_of_speech.tag, part_of_speech)
         self.assertEqual(token.lemma, lemma)
 
     def _check_analyze_syntax_result(self, tokens):