diff --git a/flake.nix b/flake.nix
index 656b10a..8ad8ebf 100644
--- a/flake.nix
+++ b/flake.nix
@@ -35,9 +35,9 @@
           pkgs = import nixpkgs {
             inherit system overlays;
           };
-          rustToolchain =
-            (pkgs.pkgsBuildHost.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml).override
-              { targets = [ "wasm32-unknown-unknown" ]; };
+          rustToolchain = (pkgs.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml).override {
+            targets = [ "wasm32-unknown-unknown" ];
+          };
         in
         {
           default = pkgs.mkShell {