diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index a5ea18d..9430703 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -10,7 +10,7 @@
 
 
 4. [Read the doc](https://github.com/major/mysqltuner-perl/). It is short and useful.
-5. [Read the internal doc](https://github.com/major/MySQLTuner-perl/blob/master/INTERNALS.md). It is short and useful.
+5. [Read the internal doc](https://github.com/major/MySQLTuner-perl/blob/master/INTERNALS.md). It is a complete and detailled documentation of all checks performed by this tool and this organization.
 
 ##If you want to contribute ##
 * You can find Enhancement asked by community at [Enhancement issue](https://github.com/major/MySQLTuner-perl/labels/enhancement)