diff --git a/.rustfmt.toml b/.rustfmt.toml
deleted file mode 100644
index a311b9d..0000000
--- a/.rustfmt.toml
+++ /dev/null
@@ -1,2 +0,0 @@
-edition = "2021"
-newline_style = "Unix"
diff --git a/nix/formatter.nix b/nix/formatter.nix
index 057b511..8d92498 100644
--- a/nix/formatter.nix
+++ b/nix/formatter.nix
@@ -8,6 +8,11 @@
       programs.nixfmt.enable = true;
       programs.rustfmt.enable = true;
       programs.taplo.enable = true;
+
+      settings.formatter.rustfmt.options = [
+        "--config"
+        "newline_style=Unix"
+      ];
     };
   };
 }