diff --git a/.prettierignore b/.prettierignore
index 522a3d1a67eac..101632425ad1d 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -16,3 +16,4 @@ packages/next-codemod/**/*.js
 packages/next-codemod/**/*.d.ts
 packages/next-env/**/*.d.ts
 test-timings.json
+test/**/out/**