diff --git a/README.md b/README.md
index cc474ad..de942cd 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ The YunoHost team uses [Weblate](https://weblate.org) for its community: http://
 
 Weblate [recommands PostgreSQL](https://docs.weblate.org/en/latest/admin/install.html#database-setup-for-weblate), but YunoHost uses Mysql.
 
-You should make sure to change this settings in your mysql config file:
+Carefull, this script modify your mysql config file:
 
 * set global innodb_file_format = BARRACUDA;
 * set global innodb_large_prefix = ON;
diff --git a/conf/settings.py b/conf/settings.py
index 3324c87..b327858 100644
--- a/conf/settings.py
+++ b/conf/settings.py
@@ -52,7 +52,7 @@ DATABASES = {
         # Additional database options
         'OPTIONS': {
             # In case of older MySQL server which has default MariaDB
-            'init_command': "SET storage_engine=INNODB; SET sql_mode='STRICT_TRANS_TABLES'",
+            # 'init_command': "SET storage_engine=INNODB; ",
             # If your server supports it, see Unicode issues above
            'charset': 'utf8mb4',
         }
@@ -62,7 +62,7 @@ DATABASES = {
 BASE_DIR = '__FINALPATH__'
 
 # Data directory
-DATA_DIR = os.path.join(BASE_DIR, '..', 'data')
+DATA_DIR = os.path.join(BASE_DIR, 'data')
 
 # Local time zone for this installation. Choices can be found here:
 # http://en.wikipedia.org/wiki/List_of_tz_zones_by_name
diff --git a/conf/weblate.cnf b/conf/weblate.cnf
new file mode 100644
index 0000000..1239643
--- /dev/null
+++ b/conf/weblate.cnf
@@ -0,0 +1,4 @@
+[mysqld]
+innodb_large_prefix=on
+innodb_file_format=barracuda
+innodb_file_per_table=on
diff --git a/scripts/backup b/scripts/backup
index 8189b9c..1eb88fe 100755
--- a/scripts/backup
+++ b/scripts/backup
@@ -53,6 +53,8 @@ ynh_backup "/etc/nginx/conf.d/$domain.d/$app.conf" "${backup_dir}/etc/nginx/conf
 ynh_mysql_dump_db "$db_name" > db.sql
 ynh_backup "db.sql" "${backup_dir}/db.sql"
 
+ynh_backup "/etc/mysql/conf.d/$app.cnf" "${backup_dir}/etc/mysql/conf.d/$app.cnf"
+
 #=================================================
 # SPECIFIC BACKUP
 #=================================================
diff --git a/scripts/install b/scripts/install
index 82186af..0df9be5 100755
--- a/scripts/install
+++ b/scripts/install
@@ -88,8 +88,9 @@ ynh_mysql_setup_db $db_name $db_name
 # https://docs.weblate.org/en/latest/admin/install.html#unicode-issues-in-mysql
 # http://mechanics.flite.com/blog/2014/07/29/using-innodb-large-prefix-to-avoid-error-1071/
 ynh_mysql_execute_as_root "ALTER DATABASE $db_name CHARACTER SET utf8mb4;"
-ynh_mysql_execute_as_root "set global innodb_file_format = BARRACUDA;"
-ynh_mysql_execute_as_root "set global innodb_large_prefix = ON;"
+
+cp ../conf/weblate.cnf /etc/mysql/conf.d/$app.cnf
+systemctl restart mysql
 
 #=================================================
 # NGINX CONFIGURATION
@@ -149,7 +150,6 @@ virtualenv ${final_path}/venv
 # https://docs.weblate.org/en/latest/admin/install.html#installation
 # TODO: use --extra-search-dir=/path/to/dists
 #=================================================
-echo "SPECIFIC SETUP settings.py"
 db_pwd=$(ynh_app_setting_get $app mysqlpwd)
 admin_mail="$(ynh_user_get_info $admin mail)"
 key=$(ynh_string_random)
@@ -170,8 +170,6 @@ ynh_replace_string "__FINALPATH__" "$final_path" $final_path/venv/lib/python2.7/
 # SPECIFIC SETUP Filling up the database
 # https://docs.weblate.org/en/latest/admin/install.html#filling-up-the-database
 #==========================================
-echo "SPECIFIC SETUP Filling up the database"
-# set up database
 (
 	set +eu
 	source ${final_path}/venv/bin/activate
@@ -185,7 +183,6 @@ echo "SPECIFIC SETUP Filling up the database"
 #=================================================
 # SETUP CRON
 #=================================================
-echo "SETUP CRON"
 cp ../conf/cron_weblate /etc/cron.d/$app
 ynh_replace_string "__FINALPATH__" "$final_path/" /etc/cron.d/$app
 
diff --git a/scripts/restore b/scripts/restore
index 4bd3306..c486f17 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -59,11 +59,12 @@ ynh_restore_file "$final_path"
 # RESTORE THE MYSQL DATABASE
 #=================================================
 
+ynh_restore_file "/etc/mysql/conf.d/$app.cnf"
+systemctl restart mysql
+
 db_pwd=$(ynh_app_setting_get $app mysqlpwd)
 ynh_mysql_setup_db $db_name $db_name $db_pwd
 ynh_mysql_connect_as $db_name $db_pwd $db_name < ./db.sql
-ynh_mysql_execute_as_root "set global innodb_file_format = BARRACUDA;"
-ynh_mysql_execute_as_root "set global innodb_large_prefix = ON;"
 
 #=================================================
 # RECREATE THE DEDICATED USER