diff --git a/services/synapse/nginx.nix b/services/synapse/nginx.nix
index 945a713..967476f 100644
--- a/services/synapse/nginx.nix
+++ b/services/synapse/nginx.nix
@@ -2,7 +2,7 @@
 let
   cfg = config.machine.synapse;
 
-  clientConfig."m.homeserver".base_url = baseUrl;
+  clientConfig."m.homeserver".base_url = "https://${cfg.domain}";
   serverConfig."m.server" = "${cfg.domain}:443";
   mkWellKnown = data: ''
     default_type application/json;