diff --git a/manifest.toml b/manifest.toml
index 8a41893..2cdfffa 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -61,7 +61,7 @@ ram.runtime = "50M"
     [resources.permissions]
     main.url = "/"
     api.url = "/api"
-    api.additional_urls = "/?id="
+    api.additional_urls = [ "/?id=" ]
     api.show_tile = false
     api.allowed = "visitors"
     api.auth_header = false