diff --git a/.prettierignore b/.prettierignore
index 71a8826..8597c49 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -1,3 +1,6 @@
 storybook-static
 cjs
 esm
+
+# Auto generated file
+/packages/storybook-addon-designs/CHANGELOG.md