diff --git a/Source/Modulos/Articulos/Controller/uControllerDetallesArticulos.pas b/Source/Modulos/Articulos/Controller/uControllerDetallesArticulos.pas
index e84129fe..fa8b82fc 100644
--- a/Source/Modulos/Articulos/Controller/uControllerDetallesArticulos.pas
+++ b/Source/Modulos/Articulos/Controller/uControllerDetallesArticulos.pas
@@ -284,7 +284,7 @@ begin
           if (FieldByName(CAMPO_CANTIDAD).AsInteger <> 0) then
           begin
             Edit;
-            FieldByName(CAMPO_CANTIDAD).AsInteger := -1;
+            FieldByName(CAMPO_CANTIDAD).AsInteger := (-1) * FieldByName(CAMPO_CANTIDAD).AsInteger;
           end;
           Next;
         end;