diff --git a/letsencrypt/client/client.py b/letsencrypt/client/client.py
index 2adc7f1ce..9df815fc2 100644
--- a/letsencrypt/client/client.py
+++ b/letsencrypt/client/client.py
@@ -130,7 +130,7 @@ class Client(object):
         _, csr_der = self.get_key_csr_pem()
 
         # TODO: Handle this exception/problem
-        if not crypto_util.csr_matches_names(self.csr_file, self.names):
+        if not crypto_util.csr_matches_names(self.csr, self.names):
             raise errrors.LetsEncryptClientError(
                 "CSR subject does not contain one of the specified names")