diff --git a/scripts/backup b/scripts/backup
index 8871560e..cdaf227c 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -14,10 +14,6 @@ source /usr/share/yunohost/helpers
 # MANAGE SCRIPT FAILURE
 #=================================================
 
-ynh_clean_setup () {
-	### Remove this function if there's nothing to clean before calling the remove script.
-	true
-}
 # Exit if an error occurs during the execution of the script
 ynh_abort_if_errors
 
@@ -56,34 +52,12 @@ ynh_print_info "Backing up php-fpm configuration..."
 ynh_backup "/etc/php/7.2/fpm/pool.d/$app.conf"
 
 #=================================================
-# BACKUP THE PostgreSQL DATABASE
+# BACKUP THE POSTGRESQL DATABASE
 #=================================================
 ynh_print_info "Backing up the PostgreSQL database..."
 
 ynh_psql_dump_db "$db_name" > db.sql
 
-#=================================================
-# SPECIFIC BACKUP
-#=================================================
-# BACKUP LOGROTATE
-#=================================================
-ynh_print_info "Backing up logrotate configuration..."
-
-ynh_backup "/etc/logrotate.d/$app"
-
-#=================================================
-# BACKUP SYSTEMD
-#=================================================
-ynh_print_info "Backing up systemd configuration..."
-
-ynh_backup "/etc/systemd/system/$app.service"
-
-#=================================================
-# BACKUP A CRON FILE
-#=================================================
-
-ynh_backup "/etc/cron.d/$app"
-
 #=================================================
 # END OF SCRIPT
 #=================================================