diff --git a/sys/srv/mediawiki.nix b/sys/srv/mediawiki.nix
index e898357..d806a18 100644
--- a/sys/srv/mediawiki.nix
+++ b/sys/srv/mediawiki.nix
@@ -64,6 +64,13 @@ with lib; {
         Poem = null;
         SecureLinkFixer = null;
         WikiEditor = null;
+        ParserFunctions = null;
+
+        TemplateStyles = pkgs.fetchzip {
+          url = "https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/extensions/TemplateStyles/+archive/refs/heads/wmf/1.42.0-wmf.9.tar.gz";
+          sha256 = "sha256-+EOwkDU8L0qQ4Wo3WDqNug4Pyz/PUhOiHKmNcFJO4G0=";
+          stripRoot = false;
+        };
       };
     };
   };