diff --git a/satcfdi/diot/__init__.py b/satcfdi/diot/__init__.py
index f903b13..d07deda 100644
--- a/satcfdi/diot/__init__.py
+++ b/satcfdi/diot/__init__.py
@@ -402,7 +402,7 @@ def render(self, w: DIOTWriter):
 
         w.end()
 
-    def _tmp_filename(self):
+    def filename(self):
         rfc = self.datos_identificacion.rfc
 
         if len(rfc) == 12:
@@ -487,15 +487,15 @@ def _encrypted_write(self, target, tmp_filename):
                         e(data_encrypted.getvalue(), nr=0, cls=Classes.Context)
         e.stream(target)
 
-    def generate_package(self, dirname: str = None) -> str:
+    def generate_package(self, dirname: str = None, filename: str = None) -> str:
         """
         Generate Package, return filename
         """
-        tmp_filename = self._tmp_filename()
+        filename = filename or self.filename()
         if dirname:
-            filename = os.path.join(dirname, tmp_filename + ".dec")
+            out_file = os.path.join(dirname, filename + ".dec")
         else:
-            filename = tmp_filename + ".dec"
-        with open(filename, 'wb') as f:
-            self._encrypted_write(f, tmp_filename)
-        return filename
+            out_file = filename + ".dec"
+        with open(out_file, 'wb') as f:
+            self._encrypted_write(f, filename)
+        return out_file
diff --git a/tests/test_diot.py b/tests/test_diot.py
index 2708607..fbcf932 100644
--- a/tests/test_diot.py
+++ b/tests/test_diot.py
@@ -48,7 +48,7 @@ def test_create_filename():
             periodo=Periodo.OCTUBRE,
             proveedores=[]
         )
-        assert diot._tmp_filename() == 'XIQB891116QE40DOTAAM1MCMB811401'
+        assert diot.filename() == 'XIQB891116QE40DOTAAM1MCMB811401'
 
     with mock.patch(f'{module}.diot.datetime') as m:
         p = ProveedorTercero(
@@ -64,7 +64,7 @@ def test_create_filename():
             periodo=Periodo.OCTUBRE,
             proveedores=[p for _ in range(40001)]
         )
-        assert diot._tmp_filename() == 'XIQB891116QE40DOTAAM1MCMB813202'
+        assert diot.filename() == 'XIQB891116QE40DOTAAM1MCMB813202'
 
     rfc = "OÑO120726RX3"
     with mock.patch(f'{module}.diot.datetime') as m:
@@ -77,7 +77,7 @@ def test_create_filename():
             periodo=Periodo.OCTUBRE,
             proveedores=[]
         )
-        assert diot._tmp_filename() == '_OÑO120726RX30DOTAAM1MCMB817181'
+        assert diot.filename() == '_OÑO120726RX30DOTAAM1MCMB817181'
 
 
 xiqb891116qe4_issuer = DatosIdentificacion(
@@ -105,7 +105,7 @@ def test_create_declaracion_diot():
     # Verify FILENAME
     with mock.patch(f'{module}.diot.datetime') as m:
         m.now = mock.Mock(return_value=datetime(2022, 11, 8, 11, 40))
-        tmp_filename = diot._tmp_filename()
+        tmp_filename = diot.filename()
         assert tmp_filename == text_file
 
     # Verify ZIP