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-rw-r--r--packages/integrations/mdx/src/index.ts1
1 files changed, 1 insertions, 0 deletions
diff --git a/packages/integrations/mdx/src/index.ts b/packages/integrations/mdx/src/index.ts
index 195b678b8..e284dd4c3 100644
--- a/packages/integrations/mdx/src/index.ts
+++ b/packages/integrations/mdx/src/index.ts
@@ -160,6 +160,7 @@ export default function mdx(partialMdxOptions: Partial<MdxOptions> = {}): AstroI
// Ensures styles and scripts are injected into a `<head>`
// When a layout is not applied
code += `\nContent[Symbol.for('astro.needsHeadRendering')] = !Boolean(frontmatter.layout);`;
+ code += `\nContent.moduleId = ${JSON.stringify(id)};`
if (command === 'dev') {
// TODO: decline HMR updates until we have a stable approach