diff --git a/hosts/mediawiki/default.nix b/hosts/mediawiki/default.nix
index ddbbed49..c6135de5 100644
--- a/hosts/mediawiki/default.nix
+++ b/hosts/mediawiki/default.nix
@@ -74,7 +74,7 @@ in
       nginx.hostName = "wiki.c3d2.de";
       package = pkgs.php81.buildComposerProject {
         pname = "mediawiki-pre-full";
-        inherit (pkgs.mediawiki) version;
+        inherit (pkgs.mediawiki) version postPatch;
 
         src = pkgs.applyPatches {
           inherit (pkgs.mediawiki) src;
@@ -89,6 +89,12 @@ in
 
         postInstall = ''
           mv $out/share/{php/mediawiki-pre-full,mediawiki}/
+          rm -r $out/share/php
+
+          # https://github.com/NixOS/nixpkgs/blob/master/pkgs/servers/web-apps/mediawiki/default.nix#L21-L23
+          echo "<?php
+            return require(getenv('MEDIAWIKI_CONFIG'));
+          ?>" > $out/share/mediawiki/LocalSettings.php
         '';
       };
       #skins = {