diff --git a/pkgs/tools/misc/gh-cal/default.nix b/pkgs/tools/misc/gh-cal/default.nix
index f4f4a66a4969..3e38cdf9d752 100644
--- a/pkgs/tools/misc/gh-cal/default.nix
+++ b/pkgs/tools/misc/gh-cal/default.nix
@@ -2,7 +2,7 @@
 , stdenv
 , fetchCrate
 , rustPlatform
-, pkgconfig
+, pkg-config
 , openssl
 , Security
 }:
@@ -17,7 +17,7 @@ rustPlatform.buildRustPackage rec {
 
   cargoSha256 = "sha256-73gqk0DjhaLGIEP5VQQlubPomxHQyg4RnY5XTgE7msQ=";
 
-  nativeBuildInputs = [ pkgconfig ];
+  nativeBuildInputs = [ pkg-config ];
   buildInputs = [ openssl ] ++ lib.optionals stdenv.isDarwin [ Security ];
 
   meta = with lib; {