diff --git a/conf/parameters.yml b/conf/parameters.yml
index 5cc47fb..046eb4c 100644
--- a/conf/parameters.yml
+++ b/conf/parameters.yml
@@ -34,7 +34,7 @@ parameters:
     mailer_encryption: ~
     mailer_auth_mode:  ~
 
-    locale: en
+    locale: __LANGUAGE__
 
     # A secret key that's used to generate certain security-related tokens
     secret: __DESKEY__
diff --git a/manifest.toml b/manifest.toml
index 3521977..d901b4a 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -42,6 +42,13 @@ ram.runtime = "50M"
     type = "group"
     default = "visitors"
 
+    [install.language]
+    ask.en = "Choose the application language"
+    ask.fr = "Choisissez la langue de l'application"
+    type = "select"
+    choices = ["fr", "en"]
+    default = "fr"
+    
     [install.admin]
     type = "user"