diff --git a/servo-tidy.toml b/servo-tidy.toml
index 10ced931923..7b4a1d9bf0c 100644
--- a/servo-tidy.toml
+++ b/servo-tidy.toml
@@ -42,6 +42,7 @@ packages = [
   "gleam",
   "h2",
   "image",
+  "itoa",
   "jpeg-decoder",
   "libloading",
   "lock_api",