diff --git a/nixos/modules/services/web-apps/kimai.nix b/nixos/modules/services/web-apps/kimai.nix
index 91735b282fcc..7db1cdaa538d 100644
--- a/nixos/modules/services/web-apps/kimai.nix
+++ b/nixos/modules/services/web-apps/kimai.nix
@@ -112,7 +112,7 @@ let
             description = ''
               MySQL *exact* version string. Not used if `createdLocally` is set,
               but must be set otherwise. See
-              https://www.kimai.org/documentation/installation.html#column-table_name-in-where-clause-is-ambiguous
+              <https://www.kimai.org/documentation/installation.html#column-table_name-in-where-clause-is-ambiguous>
               for how to set this value, especially if you're using MariaDB.
             '';
           };