diff --git a/tests/web/test_transactions.py b/tests/web/test_transactions.py
index b4eecbb8..fd445fd4 100644
--- a/tests/web/test_transactions.py
+++ b/tests/web/test_transactions.py
@@ -162,7 +162,7 @@ def test_post_transfer_transaction_endpoint(b, client, user_pk, user_sk):
 
 @pytest.mark.bdb
 @pytest.mark.usefixtures('inputs')
-def test_post_invalid_transfer_transaction_returns_400(b, client, user_pk, user_sk):
+def test_post_invalid_transfer_transaction_returns_400(b, client, user_pk):
     from bigchaindb.models import Transaction
     from bigchaindb.common.exceptions import InvalidSignature