diff --git a/nixos/modules/services/web-apps/mattermost.nix b/nixos/modules/services/web-apps/mattermost.nix
index 56799a744806..b1352778fee0 100644
--- a/nixos/modules/services/web-apps/mattermost.nix
+++ b/nixos/modules/services/web-apps/mattermost.nix
@@ -706,7 +706,7 @@ in
           ];
           description = ''
             Set commandline parameters to pass to matterircd. See
-            https://github.com/42wim/matterircd#usage for more information.
+            <https://github.com/42wim/matterircd#usage> for more information.
           '';
         };
       };