diff --git a/flake-modules/dev/default.nix b/flake-modules/dev/default.nix
index 52f09429cb..b5a6c2456a 100644
--- a/flake-modules/dev/default.nix
+++ b/flake-modules/dev/default.nix
@@ -49,6 +49,7 @@
             "**.svg"
             "**/man/*.5"
           ];
+          formatter.ruff-format.options = [ "--isolated" ];
         };
       };
     }