diff --git a/.prettierignore b/.prettierignore
index 0a50cea65..8020fa591 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -2,4 +2,5 @@
 node_modules
 packages/react-resizable-panels/dist
 packages/react-resizable-panels-website/.cache
-packages/react-resizable-panels-website/dist
\ No newline at end of file
+packages/react-resizable-panels-website/dist
+packages/react-resizable-panels/src/vendor/stacking-order.ts
\ No newline at end of file