diff --git a/flake.nix b/flake.nix
index 3bd0a48a5cce..3d01030806fb 100644
--- a/flake.nix
+++ b/flake.nix
@@ -209,11 +209,14 @@
       */
       legacyPackages = forAllSystems (
         system:
-        (import ./. { inherit system; }).extend (
-          final: prev: {
-            lib = prev.lib.extend libVersionInfoOverlay;
-          }
-        )
+        (import ./. {
+          inherit system;
+          overlays = import ./pkgs/top-level/impure-overlays.nix ++ [
+            (final: prev: {
+              lib = prev.lib.extend libVersionInfoOverlay;
+            })
+          ];
+        })
       );
 
       /**