diff --git a/flake.nix b/flake.nix
index 559aa84..4a66f35 100644
--- a/flake.nix
+++ b/flake.nix
@@ -127,6 +127,8 @@
         };
 
         apps = publishApps;
+
+        formatter = pkgs.nixfmt-rfc-style;
       }
     );
 }