diff --git a/castle/test/client_test.py b/castle/test/client_test.py
index fd82089..7fdb922 100644
--- a/castle/test/client_test.py
+++ b/castle/test/client_test.py
@@ -60,7 +60,7 @@ def test_impersonate(self):
             status=200
         )
         client = Client.from_request(request(), {})
-        options = {'impersonator': 'admin', 'user_id': '1234'}
+        options = {'properties': {'impersonator': 'admin'}, 'user_id': '1234'}
         self.assertEqual(client.impersonate(options), response_text)
 
     @responses.activate
@@ -73,7 +73,7 @@ def test_impersonate_failed(self):
             status=200
         )
         client = Client.from_request(request(), {})
-        options = {'impersonator': 'admin', 'user_id': '1234'}
+        options = {'properties': {'impersonator': 'admin'}, 'user_id': '1234'}
         with self.assertRaises(ImpersonationFailed):
             client.impersonate(options)
 
diff --git a/castle/test/commands/impersonate_test.py b/castle/test/commands/impersonate_test.py
index d112549..9647cb8 100644
--- a/castle/test/commands/impersonate_test.py
+++ b/castle/test/commands/impersonate_test.py
@@ -7,7 +7,7 @@
 
 def default_options():
     """Default options include all required fields."""
-    return {'impersonator': 'admin', 'user_id': '1234',
+    return {'properties': {'impersonator': 'admin'}, 'user_id': '1234',
             'context': {'ip': '127.0.0.1', 'user_agent': 'Chrome'}}