diff --git a/packages/docusaurus-preset-classic/package.json b/packages/docusaurus-preset-classic/package.json
index eb6172ff3c6e..9c23173a9046 100644
--- a/packages/docusaurus-preset-classic/package.json
+++ b/packages/docusaurus-preset-classic/package.json
@@ -11,6 +11,7 @@
     "@docusaurus/plugin-content-blog": "^2.0.0-alpha.56",
     "@docusaurus/plugin-content-docs": "^2.0.0-alpha.56",
     "@docusaurus/plugin-content-pages": "^2.0.0-alpha.56",
+    "@docusaurus/plugin-debug": "^2.0.0-alpha.56",
     "@docusaurus/plugin-google-analytics": "^2.0.0-alpha.56",
     "@docusaurus/plugin-google-gtag": "^2.0.0-alpha.56",
     "@docusaurus/plugin-sitemap": "^2.0.0-alpha.56",