diff --git a/conf/.env b/conf/.env
index 96261964..4a6a7635 100644
--- a/conf/.env
+++ b/conf/.env
@@ -16,7 +16,7 @@ PF_MAX_USERS=1000
 OAUTH_ENABLED=true
 
 APP_TIMEZONE=UTC
-APP_LOCALE=en
+APP_LOCALE=__LANGUAGE__
 
 ## Pixelfed Tweaks
 LIMIT_ACCOUNT_SIZE=true
diff --git a/manifest.json b/manifest.json
index c81ffa95..6430041a 100644
--- a/manifest.json
+++ b/manifest.json
@@ -46,6 +46,16 @@
                 "name": "is_public",
                 "type": "boolean",
                 "default": true
+            },
+                        {
+                "name": "language",
+                "type": "string",
+                "ask": {
+                    "en": "Choose the application language",
+                    "fr": "Choisissez la langue de l'application"
+                },
+                "choices": ["fr", "en"],
+                "default": "fr"
             }
         ]
     }
diff --git a/scripts/install b/scripts/install
index 68e7eb48..4854b8be 100644
--- a/scripts/install
+++ b/scripts/install
@@ -29,6 +29,7 @@ domain=$YNH_APP_ARG_DOMAIN
 path_url="/"
 is_public=$YNH_APP_ARG_IS_PUBLIC
 app_key="base64:$(ynh_string_random --length=32 | base64)"
+language=$YNH_APP_ARG_LANGUAGE
 
 app=$YNH_APP_INSTANCE_NAME
 
@@ -51,6 +52,7 @@ ynh_script_progression --message="Storing installation settings..."
 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=$app --key=app_key --value=$app_key
+ynh_app_setting_set --app=$app --key=language --value=$language
 
 #=================================================
 # STANDARD MODIFICATIONS