diff --git a/.eslintignore b/.eslintignore
index 0d8d61350920..48ad73c29313 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -14,6 +14,8 @@ packages/docusaurus/lib/
 packages/docusaurus-*/lib/*
 !packages/docusaurus-1.x/lib/*
 packages/docusaurus-1.x/lib/core/__tests__/split-tab.test.js
+packages/docusaurus-1.x/lib/core/metadata.js
+packages/docusaurus-1.x/lib/core/MetadataBlog.js
 packages/docusaurus-*/lib-next/
 packages/docusaurus-plugin-ideal-image/copyUntypedFiles.js
 
diff --git a/.gitignore b/.gitignore
index 530767c4851a..e1613c16b34f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,6 +21,8 @@ test-website
 packages/docusaurus/lib/
 packages/docusaurus-*/lib/*
 !packages/docusaurus-1.x/lib/*
+packages/docusaurus-1.x/lib/core/metadata.js
+packages/docusaurus-1.x/lib/core/MetadataBlog.js
 packages/docusaurus-*/lib-next/
 
 website/netlifyDeployPreview/*
diff --git a/.prettierignore b/.prettierignore
index eae6ca29e834..f1381c97b0d1 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -7,6 +7,8 @@ coverage
 packages/docusaurus/lib/
 packages/docusaurus-*/lib/*
 !packages/docusaurus-1.x/lib/*
+packages/docusaurus-1.x/lib/core/metadata.js
+packages/docusaurus-1.x/lib/core/MetadataBlog.js
 packages/docusaurus-*/lib-next/
 packages/docusaurus-init/templates/**/*.md
 __fixtures__