diff --git a/HowtoRedmine.md b/HowtoRedmine.md
index 9eb1fbb3..b906b894 100644
--- a/HowtoRedmine.md
+++ b/HowtoRedmine.md
@@ -330,3 +330,15 @@ $ cat ./lib/redmine/version.rb
 > ~~~
 > $ awk '/^ *MAJOR/ { major = $NF } /^ *MINOR/ { minor = $NF } /^ *TINY/ { tiny = $NF } END { printf "%u.%u.%u", major, minor, tiny }' ./lib/redmine/version.rb
 > ~~~
+
+### Changer un mot de passe avec `rails`
+
+~~~
+# su - REDMINE
+$ cd ~/www
+$ RAILS_ENV=production bundle exec rails c
+> user = User.where('login').first
+> user.password = 'mon-nouveau-mot-de-passe'
+> user.password_confirmation = 'mon-nouveau-mot-de-passe'
+> user.save!
+~~~