diff --git a/nixos/nix.nix b/nixos/nix.nix
index 30db75b3..455234b8 100644
--- a/nixos/nix.nix
+++ b/nixos/nix.nix
@@ -12,6 +12,10 @@ in {
   };
   nix = {
     nixPath = ["nixpkgs=${inputs.nixpkgs}"];
+    registry = {
+      nixpkgs.flake = inputs.nixpkgs;
+      nixpkgs-unstable.flake = inputs.nixpkgs-unstable;
+    };
     channel.enable = false;
     extraOptions = ''
       warn-dirty = false