From 49c09299aac5a93157b592e63846bdad30ea578e Mon Sep 17 00:00:00 2001
From: Nat Alison <1278991+tesseralis@users.noreply.github.com>
Date: Fri, 26 Jun 2020 17:39:55 -0700
Subject: [PATCH] fix(gatsby-plugin-mdx): set childOf extension for Mdx type
 definition (#25112)

* set mimeTypes extension for Mdx type definition

* whoops
---
 packages/gatsby-plugin-mdx/gatsby/source-nodes.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/packages/gatsby-plugin-mdx/gatsby/source-nodes.js b/packages/gatsby-plugin-mdx/gatsby/source-nodes.js
index b3030f492dacd..249b626728383 100644
--- a/packages/gatsby-plugin-mdx/gatsby/source-nodes.js
+++ b/packages/gatsby-plugin-mdx/gatsby/source-nodes.js
@@ -269,6 +269,11 @@ ${e}`
       },
     },
     interfaces: [`Node`],
+    extensions: {
+      childOf: {
+        mimeTypes: options.mediaTypes,
+      },
+    },
   })
   createTypes(MdxType)
 }