diff --git a/home-manager/roles/nvd.nix b/home-manager/roles/nvd.nix
index 3174bee8..a6df3458 100644
--- a/home-manager/roles/nvd.nix
+++ b/home-manager/roles/nvd.nix
@@ -2,8 +2,7 @@
 with lib;
 let
   dag = config.lib.dag;
-  nvd = import pkgs.sources.nvd { inherit pkgs; };
 in
 {
-  home.activation.report-changes = dag.entryAnywhere "${nvd}/bin/nvd diff $oldGenPath $newGenPath";
+  home.activation.report-changes = dag.entryAnywhere "${pkgs.nvd}/bin/nvd diff $oldGenPath $newGenPath";
 }
diff --git a/lib/update-system.nix b/lib/update-system.nix
index 4e086b6a..ec20263d 100644
--- a/lib/update-system.nix
+++ b/lib/update-system.nix
@@ -6,7 +6,7 @@ in
   update-system = pkgs.writeHaskellScript
     {
       name = "update-system";
-      bins = [ nixos-rebuild pkgs.nix-output-monitor (import pkgs.sources.nvd { inherit pkgs; }) ];
+      bins = [ nixos-rebuild pkgs.nix-output-monitor pkgs.nvd ];
     } ''
     main = do
         paths <- myNixPath "${configPath}"