diff --git a/api/models/agreement_signature_test.py b/api/models/agreement_signature_test.py
index 5998789..4e65cbb 100644
--- a/api/models/agreement_signature_test.py
+++ b/api/models/agreement_signature_test.py
@@ -7,6 +7,7 @@
 
 from .agreement_signature import AgreementSignature
 from .contributor import Contributor
+
 # from .repository import Repository