diff --git a/addons/l10n_ch/dta/dta_wizard.py b/addons/l10n_ch/dta/dta_wizard.py
index ce369b2bd5c..1aad4f2b454 100644
--- a/addons/l10n_ch/dta/dta_wizard.py
+++ b/addons/l10n_ch/dta/dta_wizard.py
@@ -480,6 +480,10 @@ def _create_dta(self,cr,uid,data,context):
 		v['partner_bank_code']= i.partner_bank_id.bank_code or False
 		v['invoice_reference']= i.reference
 		v['invoice_bvr_num']= i.bvr_ref_num
+		if v['invoice_bvr_num']:
+			v['invoice_bvr_num'] = v['invoice_bvr_num'].rjust(27,'0')
+			print len(v['invoice_bvr_num']), v['invoice_bvr_num']
+			
 		v['partner_comment']= i.partner_comment
 		
 		v['partner_name'] = i.partner_id and i.partner_id.name or ''