diff --git a/scripts/install b/scripts/install
index 8fcec4d..71fb2d6 100644
--- a/scripts/install
+++ b/scripts/install
@@ -45,7 +45,6 @@ ynh_script_progression --message="Storing installation settings..." --weight=1
 ynh_app_setting_set $app domain $domain
 ynh_app_setting_set $app path $path_url
 ynh_app_setting_set $app admin $admin
-ynh_app_setting_set $app is_public $is_public
 ynh_app_setting_set $app db_name $db_user
 ynh_app_setting_set $app final_path $final_path
 
@@ -141,10 +140,10 @@ ynh_add_nginx_config
 #=================================================
 
 # Make app public if necessary
-if [ $is_public -eq 1 ]
+if [ "$is_public" -eq 1 ]
 then
 	# unprotected_uris allows SSO credentials to be passed anyway.
-	ynh_app_setting_set $app unprotected_uris "/"
+	ynh_permission_update --permission="main" --add="visitors"
 fi
 
 #=================================================