diff --git a/treefmt.nix b/treefmt.nix
index 0ba7f5bdbf..87aa5b141f 100644
--- a/treefmt.nix
+++ b/treefmt.nix
@@ -15,7 +15,7 @@
     };
     just.enable = true;
     keep-sorted.enable = true;
-    nixpkgs-fmt.enable = true;
+    nixfmt.enable = true;
     shellcheck.enable = true;
     shfmt.enable = true;
     statix.enable = true;