diff --git a/tests/test_fe.py b/tests/test_fe.py
index 29aca4b..d1fb4bb 100644
--- a/tests/test_fe.py
+++ b/tests/test_fe.py
@@ -130,6 +130,3 @@ def test_xml_signature_timestamp(monkeypatch):
     xmlstring = xml.tostring()
     signer = fe.DianXMLExtensionSigner('./tests/example.p12')
     xmlsigned = signer.sign_xml_string(xmlstring)
-
-    with open('invoice.xml', 'w') as file_:
-        file_.write(xmlsigned)
\ No newline at end of file