diff --git a/manifest.toml b/manifest.toml
index bfb56a7..97529a2 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -41,7 +41,7 @@ ram.runtime = "50M"
     [install.redirect_type]
     ask.en = "Redirect type"
     ask.fr = "Type de redirection"
-    type = "string"
+    type = "select"
     default = "public_302"
 
     [install.redirect_type.choices]