diff --git a/pkgs/tools/misc/vdirsyncer/default.nix b/pkgs/tools/misc/vdirsyncer/default.nix
index 52eec555b165..3ee7787a8a45 100644
--- a/pkgs/tools/misc/vdirsyncer/default.nix
+++ b/pkgs/tools/misc/vdirsyncer/default.nix
@@ -20,7 +20,8 @@ python3Packages.buildPythonApplication rec {
     inherit src;
     sourceRoot = "source/rust";
     cargoSha256 = "0cqy0s55pkg6hww86h7qip4xaidh6g8lcypdj84n2x374jq38c5d";
-    buildInputs = [ pkgconfig openssl ] ++ stdenv.lib.optionals stdenv.isDarwin [ CoreServices Security ];
+    nativeBuildInputs = [ pkgconfig ];
+    buildInputs = [ openssl ] ++ stdenv.lib.optionals stdenv.isDarwin [ CoreServices Security ];
   };
 
   propagatedBuildInputs = with python3Packages; [