diff --git a/flake.nix b/flake.nix
index 96268d20..3e428453 100644
--- a/flake.nix
+++ b/flake.nix
@@ -29,6 +29,7 @@
   outputs = { 
     self,
     unstable-nixpkgs, 
+    master-nixpkgs,
     home-manager, 
     lanzaboote, 
     nur,