diff --git a/source/app/controllers/util.py b/source/app/controllers/util.py
index 29fd528..0b40093 100644
--- a/source/app/controllers/util.py
+++ b/source/app/controllers/util.py
@@ -1379,7 +1379,6 @@ def to_letters(value, moneda):
 
 
 def get_qr(data):
-    # ~ path = tempfile.mkstemp()[1]
     path = get_path_temp('.qr')
     qr = pyqrcode.create(data, mode='binary')
     qr.png(path, scale=7)
@@ -1621,14 +1620,18 @@ def _timbre(doc, version, values):
     node = doc.find('{}Complemento/{}TimbreFiscalDigital'.format(
         PRE[version], PRE['TIMBRE']))
     data = CaseInsensitiveDict(node.attrib.copy())
-    total_s = '%017.06f' % float(values['total'])
-    qr_data = '?re=%s&rr=%s&tt=%s&id=%s' % (
-        values['rfc_emisor'],
-        values['rfc_receptor'],
-        total_s,
-        node.attrib['UUID'])
+
+    qr_data = {
+        'url': 'https://verificacfdi.facturaelectronica.sat.gob.mx/default.aspx?',
+        'uuid': '&id={}'.format(data['uuid']),
+        'emisor': '&re={}'.format(values['rfc_emisor']),
+        'receptor': '&rr={}'.format(values['rfc_receptor']),
+        'total': '&tt={}'.format(values['total']),
+        'sello': '&fe={}'.format(data['sellocfd'][-8:]),
+    }
+    qr_data = '{url}{uuid}{emisor}{receptor}{total}{sello}'.format(**qr_data)
     data['path_cbb'] = get_qr(qr_data)
-    data['cadenaoriginal'] = CADENA.format(**node.attrib)
+    data['cadenaoriginal'] = CADENA.format(**data)
     return data