diff --git a/modules/bnporc/pp/pages.py b/modules/bnporc/pp/pages.py
index a92b5ed7a339a0a308a821775e7071b6a9619479..b1d16da69df97df4c48bf87eff238d110c8ec694 100644
--- a/modules/bnporc/pp/pages.py
+++ b/modules/bnporc/pp/pages.py
@@ -528,7 +528,7 @@ def iter_history(self, coming):
                 continue
 
             tr.parse(date=Date(op.get('dateSaisie')),
-                     vdate=Date(op.get('dateEffet')),
+                     vdate = Date(op.get('dateEffet')) if op.get('dateEffet') else None,
                      raw='%s %s' % (op.get('libelleMouvement'), op.get('canalSaisie') or ''))
             tr._op = op