diff --git a/tests/template_tests/test_library.py b/tests/template_tests/test_library.py
index 98e9d228aa..5827d33223 100644
--- a/tests/template_tests/test_library.py
+++ b/tests/template_tests/test_library.py
@@ -132,7 +132,7 @@ class SimpleBlockTagRegistrationTests(SimpleTestCase):
         self.assertIn("func", self.library.tags)
 
     def test_simple_block_tag_parens(self):
-        @self.library.simple_tag()
+        @self.library.simple_block_tag()
         def func(content):
             return content