diff --git a/source/app/controllers/pacs/cfdi_cert.py b/source/app/controllers/pacs/cfdi_cert.py
index eb5ef5f..e90ab57 100644
--- a/source/app/controllers/pacs/cfdi_cert.py
+++ b/source/app/controllers/pacs/cfdi_cert.py
@@ -184,8 +184,9 @@ class SATCertificate(object):
         # ~ node = xmlsec.tree.find_node(tree, 'Modulus')
         # ~ node.text = node.text.replace('\n', '')
 
-        xml_signed = ET.tostring(tree,
-            xml_declaration=True, encoding='UTF-8').decode()
+        # ~ xml_signed = ET.tostring(tree,
+            # ~ xml_declaration=True, encoding='UTF-8').decode()
+        xml_signed = ET.tostring(tree, encoding='UTF-8').decode()
 
         return xml_signed
 
diff --git a/source/app/controllers/utils.py b/source/app/controllers/utils.py
index 72312ef..f0eec46 100644
--- a/source/app/controllers/utils.py
+++ b/source/app/controllers/utils.py
@@ -799,7 +799,7 @@ def cancel_xml_sign(invoice, args, auth, certificado):
     template = TEMPLATE_CANCEL.format(**data)
     tree = ET.fromstring(template.encode())
     sign_xml = cert.sign_xml(tree)
-    # ~ print(sign_xml)
+    print(sign_xml)
 
     result = pac.cancel_xml(sign_xml, auth, invoice.xml)