diff --git a/certbot/cli.py b/certbot/cli.py
index b0356db23..5053b77fa 100644
--- a/certbot/cli.py
+++ b/certbot/cli.py
@@ -620,7 +620,9 @@ class HelpfulArgumentParser(object):
                 % parsed_args.csr[0])
 
         parsed_args.actual_csr = (csr, typ)
-        csr_domains, config_domains = set(domains), set(parsed_args.domains)
+
+        csr_domains = set([d.lower() for d in domains])
+        config_domains = set(parsed_args.domains)
         if csr_domains != config_domains:
             raise errors.ConfigurationError(
                 "Inconsistent domain requests:\nFrom the CSR: {0}\nFrom command line/config: {1}"
diff --git a/certbot/tests/crypto_util_test.py b/certbot/tests/crypto_util_test.py
index c83ad96b1..8adf753d6 100644
--- a/certbot/tests/crypto_util_test.py
+++ b/certbot/tests/crypto_util_test.py
@@ -163,7 +163,7 @@ class ImportCSRFileTest(unittest.TestCase):
              util.CSR(file=csrfile,
                       data=data_pem,
                       form="pem"),
-             ["example.com"],),
+             ["Example.com"],),
             self._call(csrfile, data))
 
     def test_pem_csr(self):
@@ -175,7 +175,7 @@ class ImportCSRFileTest(unittest.TestCase):
              util.CSR(file=csrfile,
                       data=data,
                       form="pem"),
-             ["example.com"],),
+             ["Example.com"],),
             self._call(csrfile, data))
 
     def test_bad_csr(self):
diff --git a/certbot/tests/testdata/csr.der b/certbot/tests/testdata/csr.der
index 22900a612..5c03f3a11 100644
Binary files a/certbot/tests/testdata/csr.der and b/certbot/tests/testdata/csr.der differ
diff --git a/certbot/tests/testdata/csr.pem b/certbot/tests/testdata/csr.pem
index b6818e39d..c62224ca7 100644
--- a/certbot/tests/testdata/csr.pem
+++ b/certbot/tests/testdata/csr.pem
@@ -1,10 +1,8 @@
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+AgMBAAGgADANBgkqhkiG9w0BAQsFAANBAAceUlq4La8qaiK0DeDP3M19BIVzMmz2
+oemG2fOvPiwNCB90ctSWQ6bMpUMV85ShcFi31C5vlntPfztehhq6YuE=
 -----END CERTIFICATE REQUEST-----