diff --git a/DESCRIPTION b/DESCRIPTION
index 09c3f2f..3591e91 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -7,5 +7,5 @@ Maintainer: Marcel Costa <marcelcosta@mcosta.cat>
 Description: Funciones internas para el laboratorio CIT
 License: GPL
 Encoding: UTF-8
+VignetteBuilder: knitr
 LazyData: true
-VignetteBuilder: knitr
\ No newline at end of file