diff --git a/common/nix/nixpkgs.nix b/common/nix/nixpkgs.nix
index a68d4ac..3d42bc1 100644
--- a/common/nix/nixpkgs.nix
+++ b/common/nix/nixpkgs.nix
@@ -1,4 +1,4 @@
-{ ... }:
+{ inputs, ... }:
 {
   nixpkgs = {
     config = {
@@ -6,4 +6,5 @@
       allowUnfreePredicate = _: true;
     };
   };
+  nixpkgs.flake.source = inputs.nixpkgs;
 }