diff --git a/flake.nix b/flake.nix
index b229835..088f803 100644
--- a/flake.nix
+++ b/flake.nix
@@ -56,16 +56,13 @@
                 # configure non-Rust dependencies (see below) here.
                 ${name} = oldAttrs: {
                   inherit buildInputs nativeBuildInputs;
-                } // buildEnvVars;
+                };
               };
             };
 
           # Configuration for the non-Rust dependencies
           buildInputs = with pkgs; [ openssl.dev ];
           nativeBuildInputs = with pkgs; [ rustc cargo pkgconfig nixpkgs-fmt ];
-          buildEnvVars = {
-            PKG_CONFIG_PATH = "${pkgs.openssl.dev}/lib/pkgconfig";
-          };
         in
         rec {
           packages.${name} = project.rootCrate.build;
@@ -85,7 +82,7 @@
             {
               inherit buildInputs nativeBuildInputs;
               RUST_SRC_PATH = "${pkgs.rust.packages.stable.rustPlatform.rustLibSrc}";
-            } // buildEnvVars;
+            };
         }
       );
 }