diff --git a/letsencrypt/cli.py b/letsencrypt/cli.py
index bbff3411b..03367e2cb 100644
--- a/letsencrypt/cli.py
+++ b/letsencrypt/cli.py
@@ -340,6 +340,9 @@ def _paths_parser(parser):
     add("--cert-dir", default=flag_default("certs_dir"),
         help=config_help("cert_dir"))
 
+    add("--renewer-config-file", default=flag_default("renewer_config_file"),
+        help=config_help("renewer_config_file"))
+
     return parser
 
 
diff --git a/letsencrypt/client.py b/letsencrypt/client.py
index bd467b13d..310fbecfc 100644
--- a/letsencrypt/client.py
+++ b/letsencrypt/client.py
@@ -185,8 +185,19 @@ class Client(object):
             authenticator).name
         if installer is not None:
             self.config.namespace.installer = plugins.find_init(installer).name
-        return storage.RenewableCert.new_lineage(
-            domains[0], cert, privkey, chain, vars(self.config.namespace))
+
+        # XXX: We clearly need a more general and correct way of getting
+        # options into the configobj for the RenewableCert instance.
+        # This is a quick-and-dirty way to do it to allow integration
+        # testing to start.  (Note that the config parameter to new_lineage
+        # ideally should be a ConfigObj, but in this case a dict will be
+        # accepted in practice.)
+        params = vars(self.config.namespace)
+        config = {"renewer_config_file":
+                  params["renewer_config_file"]} if "renewer_config_file" in params else None
+        return storage.RenewableCert.new_lineage(domains[0], cert, privkey,
+                                                 chain, params, config)
+
 
     def save_certificate(self, certr, cert_path, chain_path):
         # pylint: disable=no-self-use
diff --git a/letsencrypt/constants.py b/letsencrypt/constants.py
index 88c043d1c..5b7c3af29 100644
--- a/letsencrypt/constants.py
+++ b/letsencrypt/constants.py
@@ -25,6 +25,7 @@ CLI_DEFAULTS = dict(
     certs_dir=_CLI_DEFAULT_CERT_DIR,
     cert_path=os.path.join(_CLI_DEFAULT_CERT_DIR, "cert-letsencrypt.pem"),
     chain_path=os.path.join(_CLI_DEFAULT_CERT_DIR, "chain-letsencrypt.pem"),
+    renewer_config_file=os.path.join(_CLI_DEFAULT_CONFIG_DIR, "renewer.conf"),
     test_mode=False,
 )
 """Defaults for CLI flags and `.IConfig` attributes."""
diff --git a/letsencrypt/interfaces.py b/letsencrypt/interfaces.py
index d13127691..365b9c182 100644
--- a/letsencrypt/interfaces.py
+++ b/letsencrypt/interfaces.py
@@ -174,6 +174,9 @@ class IConfig(zope.interface.Interface):
     key_dir = zope.interface.Attribute("Keys storage.")
     cert_dir = zope.interface.Attribute("Certificates and CSRs storage.")
 
+    renewer_config_file = zope.interface.Attribute(
+        "Location of renewal configuration file.")
+
     test_mode = zope.interface.Attribute(
         "Test mode. Disables certificate verification.")