diff --git a/stripe/stripe_object.py b/stripe/stripe_object.py
index 1c965f6ec..28a5e03be 100644
--- a/stripe/stripe_object.py
+++ b/stripe/stripe_object.py
@@ -98,12 +98,11 @@ def __setitem__(self, k, v):
                 "You may set %s.%s = None to delete the property" % (
                     k, str(self), k))
 
-        if not hasattr(self, k) or v != getattr(self, k):
-            # Allows for unpickling in Python 3.x
-            if not hasattr(self, '_unsaved_values'):
-                self._unsaved_values = set()
+        # Allows for unpickling in Python 3.x
+        if not hasattr(self, '_unsaved_values'):
+            self._unsaved_values = set()
 
-            self._unsaved_values.add(k)
+        self._unsaved_values.add(k)
 
         super(StripeObject, self).__setitem__(k, v)
 
diff --git a/tests/api_resources/abstract/test_updateable_api_resource.py b/tests/api_resources/abstract/test_updateable_api_resource.py
index 6c288315f..4091f16df 100644
--- a/tests/api_resources/abstract/test_updateable_api_resource.py
+++ b/tests/api_resources/abstract/test_updateable_api_resource.py
@@ -16,7 +16,8 @@ def setUp(self):
             'post',
             '/v1/myupdateables/myid',
             {
-                'thats': 'it'
+                'id': 'myid',
+                'thats': 'it',
             }
         )
 
@@ -83,17 +84,35 @@ def test_save(self):
         self.checkSave()
         self.assert_no_request()
 
-        # Setting the same value should not cause any request.
+        # Setting the same value should cause a request.
+        self.stub_request(
+            'post',
+            '/v1/myupdateables/myid',
+            {
+                'id': 'myid',
+                'thats': 'it',
+            }
+        )
+
         self.obj.thats = 'it'
         self.checkSave()
-        self.assert_no_request()
+
+        self.assert_requested(
+            'post',
+            '/v1/myupdateables/myid',
+            {
+                'thats': 'it',
+            },
+            None
+        )
 
         # Changing the value should cause a request.
         self.stub_request(
             'post',
             '/v1/myupdateables/myid',
             {
-                'thats': 'it'
+                'id': 'myid',
+                'thats': 'it',
             }
         )