diff --git a/letsencrypt/client/tests/crypto_util_test.py b/letsencrypt/client/tests/crypto_util_test.py
index f24dbb08e..cb047281f 100644
--- a/letsencrypt/client/tests/crypto_util_test.py
+++ b/letsencrypt/client/tests/crypto_util_test.py
@@ -68,40 +68,6 @@ class MakeKeyTest(unittest.TestCase):  # pylint: disable=too-few-public-methods
         M2Crypto.RSA.load_key_string(make_key(4096))
 
 
-class MakeCSRTest(unittest.TestCase):
-    # pylint: disable=too-few-public-methods,bad-continuation
-    """Tests for letsencrypt.client.crypto_util.make_csr."""
-    def test_make_csr(self):
-        from letsencrypt.client.crypto_util import make_csr
-        result = make_csr(RSA512_KEY, ["example.com", "foo.example.com"])
-        self.assertEqual(
-            result, (
-"""-----BEGIN CERTIFICATE REQUEST-----
-MIIBbjCCARgCAQAweTELMAkGA1UEBhMCVVMxETAPBgNVBAgTCE1pY2hpZ2FuMRIw
-EAYDVQQHEwlBbm4gQXJib3IxDDAKBgNVBAoTA0VGRjEfMB0GA1UECxMWVW5pdmVy
-c2l0eSBvZiBNaWNoaWdhbjEUMBIGA1UEAxMLZXhhbXBsZS5jb20wXDANBgkqhkiG
-9w0BAQEFAANLADBIAkEA9LYRcVE3Nr+qleecEcX8JwVDnjeG1X7ucsCasuuZM0e0
-9cmYuUzxIkMjO/9x4AVcvXXRXPEV+LzWWkfkTlzRMwIDAQABoDowOAYJKoZIhvcN
-AQkOMSswKTAnBgNVHREEIDAeggtleGFtcGxlLmNvbYIPZm9vLmV4YW1wbGUuY29t
-MA0GCSqGSIb3DQEBCwUAA0EAAkBBkne4LNwBaZ95i1qez4Ii4nuj4Y0MaYrOe6lh
-YdCQq5RRHEKCFwxcJSZQaWWwmfbR0C2E2H7SnEPrcn4Y8w==
------END CERTIFICATE REQUEST-----
-""",
-            "3082016e308201180201003079310b30090603550406130255533111300f"
-            "060355040813084d6963686967616e3112301006035504071309416e6e20"
-            "4172626f72310c300a060355040a1303454646311f301d060355040b1316"
-            "556e6976657273697479206f66204d6963686967616e3114301206035504"
-            "03130b6578616d706c652e636f6d305c300d06092a864886f70d01010105"
-            "00034b003048024100f4b61171513736bfaa95e79c11c5fc2705439e3786"
-            "d57eee72c09ab2eb993347b4f5c998b94cf12243233bff71e0055cbd75d1"
-            "5cf115f8bcd65a47e44e5cd1330203010001a03a303806092a864886f70d"
-            "01090e312b302930270603551d110420301e820b6578616d706c652e636f"
-            "6d820f666f6f2e6578616d706c652e636f6d300d06092a864886f70d0101"
-            "0b05000341000240419277b82cdc01699f798b5a9ecf8222e27ba3e18d0c"
-            "698ace7ba96161d090ab94511c4282170c5c2526506965b099f6d1d02d84"
-            "d87ed29c43eb727e18f3".decode("hex")))
-
-
 class ValidPrivkeyTest(unittest.TestCase):
     """Tests for letsencrypt.client.crypto_util.valid_privkey."""