diff --git a/modules/programs/halloy.nix b/modules/programs/halloy.nix
index cce655748..4335702e3 100644
--- a/modules/programs/halloy.nix
+++ b/modules/programs/halloy.nix
@@ -36,7 +36,8 @@ in
       };
       description = ''
         Configuration settings for halloy. All available options can be
-        found here: <https://halloy.chat/configuration/index.html>.
+        found here: <https://halloy.chat/configuration/index.html>. Note that
+        halloy requires at least one `server` to be configured, see example.
       '';
     };
     themes = mkOption {