diff --git a/nixos/modules/services/web-apps/flarum.nix b/nixos/modules/services/web-apps/flarum.nix
index c466d2700b1c..c60416970a27 100644
--- a/nixos/modules/services/web-apps/flarum.nix
+++ b/nixos/modules/services/web-apps/flarum.nix
@@ -124,7 +124,7 @@ in
       description = ''
         Create the database and database user locally, and run installation.
 
-        WARNING: Due to https://github.com/flarum/framework/issues/4018, this option is set
+        WARNING: Due to <https://github.com/flarum/framework/issues/4018>, this option is set
         to false by default. The 'flarum install' command may delete existing database tables.
         Only set this to true if you are certain you are working with a fresh, empty database.
       '';