diff --git a/scripts/install b/scripts/install
index fc2ef23..506454f 100755
--- a/scripts/install
+++ b/scripts/install
@@ -46,16 +46,16 @@ final_path=/var/www/$app
 # Get and move sources
 
 tar xjvf ../sources/galette-$version.tar.bz2
-mv galette-$version/galette $final_path
+sudo mv galette-$version/galette $final_path
 rm -r galette-$version
 
 # Set permissions
 
-chown -R root:www-data $final_path
-chmod -R o-rwx $final_path
+sudo chown -R root:www-data $final_path
+sudo chmod -R o-rwx $final_path
 for folder in cache config exports logs photos templates_c tempimages
 do
-    chmod u+rx g+rwx $final_path/data/$folder
+    sudo chmod u+rx g+rwx $final_path/data/$folder
 done
 
 ####################################################
@@ -72,18 +72,18 @@ db_pwd=$(dd if=/dev/urandom bs=1 count=200 2> /dev/null | tr -c -d '[A-Za-z0-9]'
 sudo yunohost app initdb $db_user -p $db_pwd
 sudo yunohost app setting $app mysqlpassword -v $db_pwd
 
-# Generate random password
+# Edit config file
 
-cp ../conf/config.inc.php $final_path/config/
-sudo sed -i "s/USER_DB_VALUE/$db_user/g" $final_path/config/config.inc.php
-sudo sed -i "s/PWD_DB_VALUE/$db_pwd/g"   $final_path/config/config.inc.php
-sudo sed -i "s/NAME_DB_VALUE/$db_user/g" $final_path/config/config.inc.php
+sed -i "s/USER_DB_VALUE/$db_user/g" ../conf/config.inc.php
+sed -i "s/PWD_DB_VALUE/$db_pwd/g"   ../conf/config.inc.php
+sed -i "s/NAME_DB_VALUE/$db_user/g" ../conf/config.inc.php
+sudo cp ../conf/config.inc.php $final_path/config/
 
 ####################################################
 #   Nginx configuration                            #
 ####################################################
 
-sed -i "s@YNH_WWW_PATH@$path@g" ../conf/nginx.conf
+sed -i "s@YNH_WWW_PATH@$path@g"         ../conf/nginx.conf
 sed -i "s@YNH_WWW_ALIAS@$final_path/@g" ../conf/nginx.conf
 sudo cp ../conf/nginx.conf /etc/nginx/conf.d/$domain.d/$app.conf