Fix simple transfers

diff --git a/fints/client.py b/fints/client.py
index af88dc9da8d0a1b65f5008166ec9a83b7001a31d..80d7d1513731d82df0e36e6aab8a23e728f27ec3 100644 (file)
--- a/fints/client.py
+++ b/fints/client.py
@@ -657,7 +657,7 @@ class FinTS3Client:
             "endtoend_id": endtoend_id,
         }
         sepa.add_payment(payment)
-        xml = sepa.export()
+        xml = sepa.export().decode()
         return self.sepa_transfer(account, xml)
 
     def sepa_transfer(self, account: SEPAAccount, pain_message: bytes, multiple=False,