diff --git a/source/app/models/main.py b/source/app/models/main.py
index 305c03c..5fe3bd4 100644
--- a/source/app/models/main.py
+++ b/source/app/models/main.py
@@ -4097,7 +4097,7 @@ class PreFacturasDetalle(BaseModel):
         productos = PreFacturasDetalle.select().where(
             PreFacturasDetalle.factura==id)
 
-        for p in productos:
+        for p in reversed(productos):
             row = {'id': p.producto.id}
             row['clave'] = p.producto.clave
             row['descripcion'] = p.descripcion