diff --git a/accounting/transport.py b/accounting/transport.py
index 4e0e98e9d12ef7b297de2fdc5683dd5d7ed3bccd..d3970843bd17506bb59a3034f4d4ad63db1f1c1e 100644
--- a/accounting/transport.py
+++ b/accounting/transport.py
@@ -4,6 +4,7 @@ from flask import json
 
 from accounting.models import Amount, Transaction, Posting, Account
 
+
 class AccountingEncoder(json.JSONEncoder):
     def default(self, o):
         if isinstance(o, Account):
@@ -16,6 +17,7 @@ class AccountingEncoder(json.JSONEncoder):
         elif isinstance(o, Transaction):
             return dict(
                 __type__=o.__class__.__name__,
+                id=o.id,
                 date=o.date.strftime('%Y-%m-%d'),
                 payee=o.payee,
                 postings=o.postings,
@@ -42,6 +44,7 @@ class AccountingEncoder(json.JSONEncoder):
 
         return json.JSONEncoder.default(self, o)
 
+
 class AccountingDecoder(json.JSONDecoder):
     def __init__(self):
         json.JSONDecoder.__init__(self, object_hook=self.dict_to_object)
@@ -50,8 +53,8 @@ class AccountingDecoder(json.JSONDecoder):
         if '__type__' not in d:
             return d
 
-        types = {c.__name__ : c for c in [Amount, Transaction, Posting,
-                                          Account]}
+        types = {c.__name__: c for c in [Amount, Transaction, Posting,
+                                         Account]}
 
         _type = d.pop('__type__')