diff --git a/scripts/install b/scripts/install
index 1f1cb93..9482953 100644
--- a/scripts/install
+++ b/scripts/install
@@ -179,12 +179,12 @@ ynh_add_fpm_config
 #=================================================
 echo "The installation can take long. So be patient ! :)"
 pushd $final_path
-sudo $app php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
-sudo $app php -r "if (hash_file('sha384', 'composer-setup.php') === '93b54496392c062774670ac18b134c3b3a95e5a5e5c8f1a9f115f203b75bf9a129d5daa8ba6a13e2cc8a1da0806388a8') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
-sudo $app php composer-setup.php
-sudo $app php -r "unlink('composer-setup.php');"
-sudo $app ./composer.phar install
-sudo $app ./concrete/bin/concrete5 c5:install --db-server=localhost \
+sudo -u $app php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
+sudo -u $app php -r "if (hash_file('sha384', 'composer-setup.php') === '93b54496392c062774670ac18b134c3b3a95e5a5e5c8f1a9f115f203b75bf9a129d5daa8ba6a13e2cc8a1da0806388a8') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
+sudo -u $app php composer-setup.php
+sudo -u $app php -r "unlink('composer-setup.php');"
+sudo -u $app ./composer.phar install
+sudo -u $app ./concrete/bin/concrete5 c5:install --db-server=localhost \
                                          --db-database=$db_name \
                                          --db-username=$db_name \
                                          --db-password=$db_pwd \