diff --git a/packages/docusaurus-plugin-content-pages/src/pageFrontMatter.ts b/packages/docusaurus-plugin-content-pages/src/pageFrontMatter.ts
index ef03c3d00d..3f51629255 100644
--- a/packages/docusaurus-plugin-content-pages/src/pageFrontMatter.ts
+++ b/packages/docusaurus-plugin-content-pages/src/pageFrontMatter.ts
@@ -16,7 +16,7 @@ const PageFrontMatterSchema = Joi.object<FrontMatter>({
   title: Joi.string(),
   description: Joi.string(),
   wrapperClassName: Joi.string(),
-  hide_table_of_contents: Joi.string(),
+  hide_table_of_contents: Joi.boolean(),
   ...FrontMatterTOCHeadingLevels,
 });