diff --git a/source/app/controllers/pacs/cfdi_cert.py b/source/app/controllers/pacs/cfdi_cert.py
index 3d101ec..ce9bb1e 100644
--- a/source/app/controllers/pacs/cfdi_cert.py
+++ b/source/app/controllers/pacs/cfdi_cert.py
@@ -186,7 +186,7 @@ class SATCertificate(object):
 
         # ~ xml_signed = ET.tostring(tree,
             # ~ xml_declaration=True, encoding='UTF-8').decode()
-        xml_signed = ET.tostring(tree, encoding='UTF-8').decode()
+        xml_signed = ET.tostring(tree, encoding='UTF-8').decode().replace('\n', '')
 
         return xml_signed