diff --git a/facho/facho.py b/facho/facho.py
index 5f1cfb9..e4dd42d 100644
--- a/facho/facho.py
+++ b/facho/facho.py
@@ -213,7 +213,8 @@ class FachoXML:
         elem = self.get_element(xpath)
         for k, v in attrs.items():
             self.builder.set_attribute(elem, k, v)
-            
+        return self
+
     def get_element(self, xpath):
         xpath = self.fragment_prefix + self._normalize_xpath(xpath)
         return self.builder.xpath(self.root, xpath)
diff --git a/facho/fe/form.py b/facho/fe/form.py
index 2a1d4da..bb4d5a1 100644
--- a/facho/fe/form.py
+++ b/facho/fe/form.py
@@ -78,6 +78,12 @@ class TaxTotal:
             self.tax_amount += subtax.tax_amount
             self.taxable_amount += subtax.taxable_amount
       
+@dataclass
+class Price:
+    amount: float
+    type_code: str
+    type: str
+    
 
 @dataclass
 class InvoiceLine:
@@ -85,12 +91,12 @@ class InvoiceLine:
     quantity: int
     description: str
     item: Item
-    price_amount: float
+    price: Price
     tax: TaxTotal
 
     @property
     def total_amount(self):
-        return self.quantity * self.price_amount
+        return self.quantity * self.price.amount
 
     @property
     def total_tax_inclusive_amount(self):
@@ -293,6 +299,12 @@ class DIANInvoiceXML(fe.FeXML):
             line.set_element('/cac:InvoiceLine/cbc:InvoicedQuantity', invoice_line.quantity, unitCode = 'NAR')
             line.set_element('/cac:InvoiceLine/cbc:LineExtensionAmount', invoice_line.total_amount, currencyID="COP")
             line.set_element('/cac:InvoiceLine/cac:TaxTotal/cbc:TaxAmount', invoice_line.tax_amount, currencyID='COP')
+
+            condition_price = line.fragment('/cac:InvoiceLine/cac:PricingReference/cac:AlternativeConditionPrice')
+            condition_price.set_element('/cac:AlternativeConditionPrice/cbc:PriceAmount', invoice_line.price.amount, currencyID='COP')
+            condition_price.set_element('/cac:AlternativeConditionPrice/cbc:PriceTypeCode', invoice_line.price.type_code)
+            condition_price.set_element('/cac:AlternativeConditionPrice/cbc:PriceType', invoice_line.price.type)
+            
             for subtotal in invoice_line.tax.subtotals:
                 line.set_element('/cac:InvoiceLine/cac:TaxTotal/cac:TaxSubtotal/cbc:TaxableAmount', subtotal.taxable_amount, currencyID='COP')
                 line.set_element('/cac:InvoiceLine/cac:TaxTotal/cac:TaxSubtotal/cbc:TaxAmount', subtotal.tax_amount, currencyID='COP')
@@ -302,7 +314,7 @@ class DIANInvoiceXML(fe.FeXML):
             line.set_element('/cac:InvoiceLine/cac:Item/cbc:Description', invoice_line.item.description)
             # TODO
             line.set_element('/cac:InvoiceLine/cac:Item/cac:StandardItemIdentification/cbc:ID', invoice_line.item.id) 
-            line.set_element('/cac:InvoiceLine/cac:Price/cbc:PriceAmount', invoice_line.price_amount, currencyID="COP") 
+            line.set_element('/cac:InvoiceLine/cac:Price/cbc:PriceAmount', invoice_line.price.amount, currencyID="COP") 
 
     def attach_invoice(fexml, invoice):
         """adiciona etiquetas a FEXML y retorna FEXML
diff --git a/tests/test_fe_form.py b/tests/test_fe_form.py
index 56fb27f..7fcd299 100644
--- a/tests/test_fe_form.py
+++ b/tests/test_fe_form.py
@@ -58,7 +58,7 @@ def simple_invoice():
         quantity = 1,
         description = 'producto facho',
         item = form.StandardItem('test', 9999),
-        price_amount = 100.0,
+        price = form.Price(100.0, '', ''),
         tax = form.TaxTotal(
             tax_amount = 0.0,
             taxable_amount = 0.0,
@@ -154,7 +154,7 @@ def test_invoice_totals(simple_invoice_without_lines):
         quantity = 1,
         description = 'producto',
         item = form.StandardItem('test', 9999),
-        price_amount = 1_500_000,
+        price = form.Price(1_500_000, '', ''),
         tax = form.TaxTotal(
             subtotals = [
                 form.TaxSubTotal(
@@ -177,7 +177,7 @@ def test_invoice_cufe(simple_invoice_without_lines):
         quantity = 1,
         description = 'producto',
         item = form.StandardItem('test', 111),
-        price_amount = 1_500_000,
+        price = form.Price(1_500_000, '', ''),
         tax = form.TaxTotal(
             subtotals = [
                 form.TaxSubTotal(