diff --git a/pkgs/applications/science/logic/lean/default.nix b/pkgs/applications/science/logic/lean/default.nix
index b3f0b325927..095aa5a7f8c 100644
--- a/pkgs/applications/science/logic/lean/default.nix
+++ b/pkgs/applications/science/logic/lean/default.nix
@@ -11,7 +11,8 @@ stdenv.mkDerivation rec {
     sha256 = "0irh9b4haz0pzzxrb4hwcss91a0xb499kjrcrmr2s59p3zq8bbd9";
   };
 
-  buildInputs = [ gmp cmake ];
+  nativeBuildInputs = [ cmake ];
+  buildInputs = [ gmp ];
   enableParallelBuilding = true;
 
   preConfigure = ''