Whoopsie daysie.

That's a fun commit message. So lyrical.
diff --git a/tests/hazmat/backends/test_openssl.py b/tests/hazmat/backends/test_openssl.py
index ebf1570..154af00 100644
--- a/tests/hazmat/backends/test_openssl.py
+++ b/tests/hazmat/backends/test_openssl.py
@@ -271,7 +271,7 @@
                     mgf=padding.MGF1(
                         algorithm=hashes.SHA256(),
                     ),
-                    salt_length=padding.MGF1.MAX_LENGTH
+                    salt_length=padding.PSS.MAX_LENGTH
                 ),
                 hashes.SHA1(),
                 backend
@@ -284,7 +284,7 @@
                     mgf=padding.MGF1(
                         algorithm=hashes.SHA256(),
                     ),
-                    salt_length=padding.MGF1.MAX_LENGTH
+                    salt_length=padding.PSS.MAX_LENGTH
                 ),
                 hashes.SHA1(),
                 backend