diff --git a/spacy/tests/test_displacy.py b/spacy/tests/test_displacy.py
index 13144e0d8..280ff31bb 100644
--- a/spacy/tests/test_displacy.py
+++ b/spacy/tests/test_displacy.py
@@ -618,6 +618,8 @@ def test_pprint_render_custom_attributes(horse_doc):
     with pytest.raises(AttributeError):
         AttributeFormat("._depp").render(horse_doc[2])
 
+    Token.remove_extension("test")
+
 
 def test_pprint_minimal_render_table_one_sentence(
     fully_featured_doc_one_sentence,