diff --git a/source/app/controllers/pacs/comerciodigital/comercio.py b/source/app/controllers/pacs/comerciodigital/comercio.py
index e930278..a06c5a7 100644
--- a/source/app/controllers/pacs/comerciodigital/comercio.py
+++ b/source/app/controllers/pacs/comerciodigital/comercio.py
@@ -126,10 +126,10 @@ class PACComercioDigital(object):
         """
             Comercio Digital solo soporta la declaración con doble comilla
         """
-        tree = ET.fromstring(xml.encode())
-        xml = ET.tostring(tree,
-            pretty_print=True, doctype='<?xml version="1.0" encoding="utf-8"?>')
-        return xml
+        # ~ tree = ET.fromstring(xml.encode())
+        # ~ xml = ET.tostring(tree,
+            # ~ pretty_print=True, doctype='<?xml version="1.0" encoding="utf-8"?>')
+        return xml.encode('utf-8')
 
     def stamp(self, cfdi, auth):
         # ~ if DEBUG or not auth: