diff --git a/facho/facho.py b/facho/facho.py
index f800ef8..da2aa65 100644
--- a/facho/facho.py
+++ b/facho/facho.py
@@ -86,10 +86,7 @@ class LXMLBuilder:
         elem.text = text
 
     def xpath(self, elem, xpath):
-        print('xpath:' + xpath)
-        print('elem:'+ self.tostring(elem))
         elems = elem.xpath(xpath, namespaces=self.nsmap)
-        print('xpath elemnts:' + str(elems))
         if elems:
             return elems[0]
 
diff --git a/facho/fe/form.py b/facho/fe/form.py
index 9625f6f..acff0e5 100644
--- a/facho/fe/form.py
+++ b/facho/fe/form.py
@@ -231,11 +231,13 @@ class DIANInvoiceXML(fe.FeXML):
         fexml.set_element('/fe:Invoice/fe:LegalMonetaryTotal/cbc:PayableAmount',
                           invoice.invoice_legal_monetary_total.payable_amount,
                           currencyID='COP')
-                          
-        for index, invoice_line in enumerate(invoice.invoice_lines):
-            line = fexml.fragment('/fe:Invoice/fe:InvoiceLine', append=True)
 
-            line.set_element('/fe:InvoiceLine/cbc:ID', index)
+        next_append = False
+        for index, invoice_line in enumerate(invoice.invoice_lines):
+            line = fexml.fragment('/fe:Invoice/fe:InvoiceLine', append=next_append)
+            next_append = True
+
+            line.set_element('/fe:InvoiceLine/cbc:ID', index + 1)
             line.set_element('/fe:InvoiceLine/cbc:InvoicedQuantity', invoice_line.quantity, unitCode = 'NAR')
             line.set_element('/fe:InvoiceLine/cbc:LineExtensionAmount', invoice_line.total_amount, currencyID="COP")
             line.set_element('/fe:InvoiceLine/fe:Price/cbc:PriceAmount', invoice_line.price_amount, currencyID="COP") 
diff --git a/tests/test_fe_form.py b/tests/test_fe_form.py
index ce4b5c2..d8b119b 100644
--- a/tests/test_fe_form.py
+++ b/tests/test_fe_form.py
@@ -107,3 +107,10 @@ def test_invoicesimple_zip(simple_invoice):
         xml_data = dianzip.open(name_invoice).read().decode('utf-8')
         assert xml_data == str(xml_invoice)
 
+
+def test_bug_cbcid_empty_on_invoice_line(simple_invoice):
+    xml_invoice = form.DIANInvoiceXML(simple_invoice)
+    print(str(xml_invoice))
+
+    cbc_id = xml_invoice.get_element_text('/fe:Invoice/fe:InvoiceLine[1]/cbc:ID', format_=int)
+    assert cbc_id == 1