diff --git a/iota/commands/extended/promote_transaction.py b/iota/commands/extended/promote_transaction.py
index 564d147..51f48e7 100644
--- a/iota/commands/extended/promote_transaction.py
+++ b/iota/commands/extended/promote_transaction.py
@@ -39,7 +39,7 @@ async def _execute(self, request):
         if cc_response['state'] is False:
             raise BadApiResponse(
                 'Transaction {transaction} is not promotable. '
-                'You should reattach first.'.format(transaction=transaction)
+                'Info: {reason}'.format(transaction=transaction, reason=cc_response['info'])
             )
 
         spam_transfer = ProposedTransaction(
diff --git a/test/commands/extended/promote_transaction_test.py b/test/commands/extended/promote_transaction_test.py
index b8e9c4e..99a4647 100644
--- a/test/commands/extended/promote_transaction_test.py
+++ b/test/commands/extended/promote_transaction_test.py
@@ -401,6 +401,7 @@ async def test_not_promotable(self):
 
     self.adapter.seed_response('checkConsistency', {
       'state': False,
+      'info': 'Something went terribly wrong.',
     })
 
     with self.assertRaises(BadApiResponse):