diff --git a/config_panel.toml b/config_panel.toml
index fbc83d1..386cd6f 100644
--- a/config_panel.toml
+++ b/config_panel.toml
@@ -10,4 +10,4 @@ name = "Element configuration"
         ask = "Choose a home server"
         type = "url"
         default = "https://matrix-client.matrix.org"
-        bind = ":__FINALPATH__/config.json"
+        bind = "base_url:__FINALPATH__/config.json"