diff --git a/ruff.toml b/ruff.toml
index 7da4bee..f1d03f8 100644
--- a/ruff.toml
+++ b/ruff.toml
@@ -1,6 +1,7 @@
 [lint]
 extend-select = [
 	"C901",
+	"PERF401",
 	"W",
 ]
 ignore = [