diff --git a/letsencrypt/client.py b/letsencrypt/client.py
index bda63f6b7..99f211beb 100644
--- a/letsencrypt/client.py
+++ b/letsencrypt/client.py
@@ -162,7 +162,7 @@ class Client(object):
     :ivar .AuthHandler auth_handler: Authorizations handler that will
         dispatch DV and Continuity challenges to appropriate
         authenticators (providing `.IAuthenticator` interface).
-    :ivar .IAuthenticator dv_auth: Prepared (`.IAuthenticator.prepare`)
+    :ivar .IAuthenticator auth: Prepared (`.IAuthenticator.prepare`)
         authenticator that can solve the `.constants.DV_CHALLENGES`.
     :ivar .IInstaller installer: Installer.
     :ivar acme.client.Client acme: Optional ACME client API handle.
@@ -170,11 +170,11 @@ class Client(object):
 
     """
 
-    def __init__(self, config, account_, dv_auth, installer, acme=None):
+    def __init__(self, config, account_, auth, installer, acme=None):
         """Initialize a client."""
         self.config = config
         self.account = account_
-        self.dv_auth = dv_auth
+        self.auth = auth
         self.installer = installer
 
         # Initialize ACME if account is provided
@@ -182,9 +182,9 @@ class Client(object):
             acme = acme_from_config_key(config, self.account.key)
         self.acme = acme
 
-        if dv_auth is not None:
+        if auth is not None:
             self.auth_handler = auth_handler.AuthHandler(
-                dv_auth, self.acme, self.account)
+                auth, self.acme, self.account)
         else:
             self.auth_handler = None
 
diff --git a/letsencrypt/tests/client_test.py b/letsencrypt/tests/client_test.py
index b1a3fc779..7dd513e18 100644
--- a/letsencrypt/tests/client_test.py
+++ b/letsencrypt/tests/client_test.py
@@ -107,7 +107,7 @@ class ClientTest(unittest.TestCase):
             self.acme = acme.return_value = mock.MagicMock()
             self.client = Client(
                 config=self.config, account_=self.account,
-                dv_auth=None, installer=None)
+                auth=None, installer=None)
 
     def test_init_acme_verify_ssl(self):
         net = self.acme_client.call_args[1]["net"]