diff --git a/flake.nix b/flake.nix
index ec466d80..61ca2ebf 100644
--- a/flake.nix
+++ b/flake.nix
@@ -187,7 +187,7 @@
           pre-commit = preCommitCheck;
         };
 
-        formatter = pkgs.nixfmt;
+        formatter = pkgs.nixfmt-tree;
       }
     );
 }