diff --git a/flake.nix b/flake.nix
index 7f6e98f..c85b43b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -10,6 +10,7 @@
   {
     devShells."${system}".default =
       pkgs.mkShellNoCC {
+        nativeBuildInputs = [ pkgs.pkg-config ];
         buildInputs = [ pkgs.bashInteractive ];
         packages = with pkgs; [
           rustc
@@ -28,6 +29,7 @@
             ];
           })
         ];
+        PKG_CONFIG_PATH = "${pkgs.openssl.dev}/lib/pkgconfig";
         shellHook = ''
           export SHELL=${pkgs.lib.getExe pkgs.bashInteractive}
         '';