diff --git a/test/interactors/obtain_cert_test.rb b/test/interactors/obtain_cert_test.rb
index 09bd2ee..32086aa 100644
--- a/test/interactors/obtain_cert_test.rb
+++ b/test/interactors/obtain_cert_test.rb
@@ -21,7 +21,6 @@ def setup
   test ".call failure" do
     request = Requests::CertIssueRequest.new
     identity = Identity.new
-    identity.sub = "testUser"
     mock = Minitest::Mock.new
     mock.expect :call, nil, [ identity, request ]
     Services::Certificate.stub :issue_cert, mock do