From 997985a608e8a90b464a0078e0c86d970b0c953e Mon Sep 17 00:00:00 2001
From: GatsbyJS Bot <mathews.kyle+gatsbybot@gmail.com>
Date: Thu, 25 Feb 2021 05:46:16 -0500
Subject: [PATCH] Update index.js (#29758) (#29761)

(cherry picked from commit 3cafa4fdc20f78896ca5ac2bf0f18cb9af3a2246)

Co-authored-by: Hendra Gotara <hendra.gotara@gmail.com>
---
 packages/gatsby-plugin-sharp/src/index.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/gatsby-plugin-sharp/src/index.js b/packages/gatsby-plugin-sharp/src/index.js
index 361e03bfc510b..d388d4abb2485 100644
--- a/packages/gatsby-plugin-sharp/src/index.js
+++ b/packages/gatsby-plugin-sharp/src/index.js
@@ -617,6 +617,9 @@ async function fluid({ file, args = {}, reporter, cache }) {
       case `webp`:
         srcSetType = `image/webp`
         break
+      case `avif`:
+        srcSetType = `image/avif`
+        break
       case ``:
       case `no_change`:
       default: