diff --git a/tests/test_51_client.py b/tests/test_51_client.py
index d72d8895b..567f1ee61 100644
--- a/tests/test_51_client.py
+++ b/tests/test_51_client.py
@@ -35,7 +35,7 @@
 from saml2.saml import NameID
 from saml2.samlp import SessionIndex
 from saml2.server import Server
-from saml2.sigver import pre_encryption_part, make_temp, pre_encrypt_assertion
+from saml2.sigver import pre_encryption_part, pre_encrypt_assertion
 from saml2.sigver import rm_xmltag
 from saml2.sigver import verify_redirect_signature
 from saml2.s_utils import do_attribute_statement