Ported openssl vector tests
diff --git a/tests/primitives/test_cryptrec.py b/tests/primitives/test_cryptrec.py
index c8e0af0..59d8b24 100644
--- a/tests/primitives/test_cryptrec.py
+++ b/tests/primitives/test_cryptrec.py
@@ -18,6 +18,7 @@
 from __future__ import absolute_import, division, print_function
 
 import binascii
+import os
 
 from cryptography.primitives.block import ciphers, modes
 
@@ -28,8 +29,7 @@
 class TestCamelliaECB(object):
     test_NTT = generate_encrypt_test(
         load_cryptrec_vectors_from_file,
-        "Camellia",
-        "NTT",
+        os.path.join("Camellia", "NTT"),
         ["camellia-128-ecb", "camellia-192-ecb", "camellia-256"],
         lambda key: ciphers.Camellia(binascii.unhexlify((key))),
         lambda key: modes.EBC(),