diff --git a/facho/fe/form/__init__.py b/facho/fe/form/__init__.py
index fd1f21c..395c748 100644
--- a/facho/fe/form/__init__.py
+++ b/facho/fe/form/__init__.py
@@ -116,12 +116,12 @@ class Amount:
 class Quantity:
     
     def __init__(self, val, code):
-        if not isinstance(val, int):
-            raise ValueError('val expected int')
+        if type(val) not in [float, int]:
+            raise ValueError('val expected int or float')
         if code not in codelist.UnidadesMedida:
             raise ValueError("code [%s] not found" % (code))
 
-        self.value = val
+        self.value = Amount(val)
         self.code = code
 
     def __mul__(self, other):
diff --git a/tests/test_fe_form.py b/tests/test_fe_form.py
index b74707f..2c01b96 100644
--- a/tests/test_fe_form.py
+++ b/tests/test_fe_form.py
@@ -112,7 +112,7 @@ def test_invoice_cufe(simple_invoice_without_lines):
     simple_invoice.invoice_supplier.ident = form.PartyIdentification('700085371', '5', '31')
     simple_invoice.invoice_customer.ident = form.PartyIdentification('800199436', '5', '31')
     simple_invoice.add_invoice_line(form.InvoiceLine(
-        quantity = form.Quantity(1, '94'),
+        quantity = form.Quantity(1.00, '94'),
         description = 'producto',
         item = form.StandardItem(111),
         price = form.Price(form.Amount(1_500_000), '01', ''),