diff --git a/HowtoRedmine.md b/HowtoRedmine.md
index 43f1c399..d4f2b684 100644
--- a/HowtoRedmine.md
+++ b/HowtoRedmine.md
@@ -228,13 +228,13 @@ bundle install --gemfile=~/www/Gemfile --path=~/.gems
 Migration des plugins :
 
 ~~~
-bundle exec rake -qf ~/www/Rakefile redmine:plugins:migrate
+( cd ~/www && bundle exec rake -qf ~/www/Rakefile redmine:plugins:migrate )
 ~~~
 
 #### Desinstallation d'un plugin :
 
 ~~~
-bundle exec rake -qf ~/www/Rakefile redmine:plugins:migrate[plugin_name,0]
+( cd ~/www && bundle exec rake -qf ~/www/Rakefile redmine:plugins:migrate[plugin_name,0] )
 ~~~
 
 ### Mise a jour