diff --git a/servo-tidy.toml b/servo-tidy.toml
index ee41d476151..6bc386c85f0 100644
--- a/servo-tidy.toml
+++ b/servo-tidy.toml
@@ -31,7 +31,7 @@ num = []
 
 [ignore]
 # Ignored packages with duplicated versions
-packages = []
+packages = ["bitflags"]
 # Files that are ignored for all tidy and lint checks.
 files = [
   # Helper macro where actually a pseudo-element per line makes sense.