diff --git a/modules/home/base/nix/default.nix b/modules/home/base/nix/default.nix
index 592efc2..2259e43 100644
--- a/modules/home/base/nix/default.nix
+++ b/modules/home/base/nix/default.nix
@@ -13,6 +13,12 @@
       # i.e. for use in pkgs = import <nixpkgs> {}.
       nixPath = ["nixpkgs=${inputs.nixpkgs}"];
 
+      # Pin flake registry nixpkgs to flake nixpkgs version.
+      # i.e. for use in nix search nixpkgs.
+      registry = {
+        nixpkgs.flake = inputs.nixpkgs;
+      };
+
       settings = {
         trusted-users = [
           "root"