diff --git a/line.py b/line.py
index 24d7169..0c3401a 100644
--- a/line.py
+++ b/line.py
@@ -358,7 +358,9 @@ class Line(SecondCurrencyMixin, Workflow, ModelSQL, ModelView):
                         if sp_line.splittype != 'tr':
                             continue
 
-                        values = cls.get_counterpart_values(line, {
+                        values = cls.get_counterpart_values(line,
+                            splitline = sp_line,
+                            values = {
                             'cashbook': sp_line.booktransf.id,
                             'description': sp_line.description,
                             'amount': sp_line.amount \
@@ -783,7 +785,7 @@ class Line(SecondCurrencyMixin, Workflow, ModelSQL, ModelView):
         return values2
 
     @classmethod
-    def get_counterpart_values(cls, line, values={}):
+    def get_counterpart_values(cls, line, splitline=None, values={}):
         """ get values to create counter-part of
             transfer booking
         """