diff --git a/dev/examples/git/pre-commit b/dev/examples/git/pre-commit
index 790632dda9e..72b0ca61704 100644
--- a/dev/examples/git/pre-commit
+++ b/dev/examples/git/pre-commit
@@ -1,5 +1,7 @@
 #!/bin/sh
-# To install this precommit file: TODO
+# To install this precommit file: put this file in your local repo in .git/hooks directory and make it executable
+# you need to adapt the path to your phpcs install
+# when running git commit, it first execute this file checking only modified files, so it is faster than running on all files
 # To run the fix manually: cd ~/git/dolibarr; phpcbf -s -p -d memory_limit=-1 --extensions=php --colors --tab-width=4 --standard=dev/setup/codesniffer/ruleset.xml --encoding=utf-8 --runtime-set ignore_warnings_on_exit true fileordir
 
 PROJECT=`php -r "echo dirname(dirname(dirname(realpath('$0'))));"`