diff --git a/pkgs/development/tools/rust/rustfmt/default.nix b/pkgs/development/tools/rust/rustfmt/default.nix
index b37292b6afa..e1afeee3422 100644
--- a/pkgs/development/tools/rust/rustfmt/default.nix
+++ b/pkgs/development/tools/rust/rustfmt/default.nix
@@ -29,6 +29,7 @@ rustPlatform.buildRustPackage rec {
     homepage = https://github.com/rust-lang-nursery/rustfmt;
     license = with licenses; [ mit asl20 ];
     maintainers = [ maintainers.globin ];
+    broken = stdenv.isDarwin;
     platforms = platforms.all;
   };
 }