diff --git a/manifest.json b/manifest.json
index 52053ec..575c260 100644
--- a/manifest.json
+++ b/manifest.json
@@ -41,6 +41,15 @@
       },
       "example": "/bludit",
       "default": "/bludit"
+      },
+    {
+      "name": "is_public",
+      "type": "boolean",
+      "ask": {
+        "en": "Is it a public application?",
+        "fr": "Est-ce une application publique ?"
+    },
+        "default": true
       }
     ]
   }
diff --git a/scripts/backup b/scripts/backup
index 1a67d9d..ef6396e 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -24,7 +24,6 @@ app=$YNH_APP_INSTANCE_NAME
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 domain=$(ynh_app_setting_get --app=$app --key=domain)
 phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
-db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 
 #=================================================
 # DECLARE DATA AND CONF FILES TO BACKUP
diff --git a/scripts/change_url b/scripts/change_url
index 6e348ac..550c0a9 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -27,8 +27,6 @@ app=$YNH_APP_INSTANCE_NAME
 ynh_script_progression --message="Loading installation settings..."  --weight=1
 
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
-db_name=$(ynh_app_setting_get --app=$app --key=db_name)
-db_pwd=$(ynh_app_setting_get --app=$app --key=mysqlpwd)
 
 #=================================================
 # CHECK WHICH PARTS SHOULD BE CHANGED
diff --git a/scripts/install b/scripts/install
index ab20695..79cc5a7 100644
--- a/scripts/install
+++ b/scripts/install
@@ -22,6 +22,7 @@ ynh_abort_if_errors
 
 domain=$YNH_APP_ARG_DOMAIN
 path_url=$YNH_APP_ARG_PATH
+is_public=$YNH_APP_ARG_IS_PUBLIC
 
 app=$YNH_APP_INSTANCE_NAME
 
@@ -46,6 +47,7 @@ ynh_script_progression --message="Storing installation settings..." --weight=1
 
 ynh_app_setting_set --app=$app --key=domain --value=$domain
 ynh_app_setting_set --app=$app --key=path --value=$path_url
+ynh_app_setting_set --app=$app --key=is_public --value=$is_public
 
 #=================================================
 # STANDARD MODIFICATIONS
diff --git a/scripts/restore b/scripts/restore
index 7e408b5..7c14e1d 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -26,7 +26,6 @@ app=$YNH_APP_INSTANCE_NAME
 domain=$(ynh_app_setting_get --app=$app --key=domain)
 path_url=$(ynh_app_setting_get --app=$app --key=path)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
-db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 28e4b5b..c90a119 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -19,8 +19,7 @@ app=$YNH_APP_INSTANCE_NAME
 domain=$(ynh_app_setting_get --app=$app --key=domain)
 path_url=$(ynh_app_setting_get --app=$app --key=path)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
-db_name=$(ynh_app_setting_get --app=$app --key=db_name)
-db_pwd=$(ynh_app_setting_get --app=$app --key=mysqlpwd)
+is_public=$(ynh_app_setting_get --app=$app --key=is_public)
 phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================