diff --git a/ietf/utils/test_utils.py b/ietf/utils/test_utils.py
index ed90a603f..53ce091e3 100644
--- a/ietf/utils/test_utils.py
+++ b/ietf/utils/test_utils.py
@@ -323,7 +323,7 @@ class TestCase(django.test.TestCase):
 
     def assertValidHTML(self, data):
         try:
-            parser.parse(data)
+            self.parser.parse(data)
         except Exception as e:
             raise self.failureException(str(e))