diff --git a/acme/acme/jose/interfaces.py b/acme/acme/jose/interfaces.py
index f841848b3..f85777a30 100644
--- a/acme/acme/jose/interfaces.py
+++ b/acme/acme/jose/interfaces.py
@@ -194,7 +194,7 @@ class JSONDeSerializable(object):
         :rtype: str
 
         """
-        return self.json_dumps(sort_keys=True, indent=4, separators=(',', ': '))
+        return self.json_dumps(sort_keys=True, indent=4)
 
     @classmethod
     def json_dump_default(cls, python_object):
diff --git a/acme/acme/jose/interfaces_test.py b/acme/acme/jose/interfaces_test.py
index 380c3a2a5..91e6f4416 100644
--- a/acme/acme/jose/interfaces_test.py
+++ b/acme/acme/jose/interfaces_test.py
@@ -91,7 +91,7 @@ class JSONDeSerializableTest(unittest.TestCase):
 
     def test_json_dumps_pretty(self):
         self.assertEqual(
-            self.seq.json_dumps_pretty(), '[\n    "foo1",\n    "foo2"\n]')
+            self.seq.json_dumps_pretty(), '[\n    "foo1", \n    "foo2"\n]')
 
     def test_json_dump_default(self):
         from acme.jose.interfaces import JSONDeSerializable