diff --git a/facho/facho.py b/facho/facho.py
index 649dc0e..5035050 100644
--- a/facho/facho.py
+++ b/facho/facho.py
@@ -275,6 +275,7 @@ class FachoXML:
         """
         xpath = self._path_xpath_for(xpath)
         elem = self.get_element(xpath)
+
         for k, v in attrs.items():
             self.builder.set_attribute(elem, k, v)
         return self
diff --git a/facho/fe/__init__.py b/facho/fe/__init__.py
index 072d3c3..11adce3 100644
--- a/facho/fe/__init__.py
+++ b/facho/fe/__init__.py
@@ -12,3 +12,4 @@ from .fe import DianZIP
 from .fe import AMBIENTE_PRUEBAS
 from .fe import AMBIENTE_PRODUCCION
 from . import form_xml
+from . import nomina
diff --git a/tests/test_nomina.py b/tests/test_nomina.py
new file mode 100644
index 0000000..1aef5ac
--- /dev/null
+++ b/tests/test_nomina.py
@@ -0,0 +1,22 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# This file is part of facho.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+"""Tests for `facho` package."""
+
+import pytest
+
+from facho import fe
+
+def test_adicionar_devengado_Basico():
+    nomina = fe.nomina.DIANNominaIndividual()
+
+    nomina.adicionar_devengado(fe.nomina.DevengadoBasico(
+        dias_trabajados = 30,
+        sueldo_trabajado = fe.nomina.Amount(1_000_000)
+    ))
+
+    xml = nomina.toFachoXML()
+    assert xml.get_element_attribute('/fe:NominaIndividual/Devengados/Basico', 'DiasTrabajados') == '30'
+    assert xml.get_element_attribute('/fe:NominaIndividual/Devengados/Basico', 'SueldoTrabajado') == '1000000.0'