diff --git a/flake.nix b/flake.nix
index 6147832e..4f1acdac 100644
--- a/flake.nix
+++ b/flake.nix
@@ -139,10 +139,16 @@
           (nixlib.getAttrs allMachines self.packages.x86_64-linux);
 
         simplesamlphp = pkgs.callPackage ./packages/simplesamlphp { };
-
-        mediawiki-extensions = pkgs.callPackage ./packages/mediawiki-extensions { };
       } // nixlib.genAttrs allMachines
         (machine: self.nixosConfigurations.${machine}.config.system.build.toplevel);
+    } ;
+
+    legacyPackages = {
+      "x86_64-linux" = let
+        pkgs = nixpkgs.legacyPackages."x86_64-linux";
+      in rec {
+        mediawiki-extensions = pkgs.callPackage ./packages/mediawiki-extensions { };
+      };
     };
   };
 }