diff --git a/docs/next.config.js b/docs/next.config.js
index 951d92119a7bc8..a8216a5762b290 100644
--- a/docs/next.config.js
+++ b/docs/next.config.js
@@ -173,7 +173,7 @@ module.exports = withDocsInfra({
       : null,
     LIB_VERSION: pkg.version,
     FEEDBACK_URL: process.env.FEEDBACK_URL,
-    DEFAULT_BRANCH: 'master', // #default-branch-switch
+    SOURCE_GITHUB_BRANCH: 'master', // #default-branch-switch
     SOURCE_CODE_REPO: 'https://github.com/mui/material-ui',
     GITHUB_TEMPLATE_DOCS_FEEDBACK: '4.docs-feedback.yml',
     BUILD_ONLY_ENGLISH_LOCALE: buildOnlyEnglishLocale,
diff --git a/docs/src/modules/components/EditPage.js b/docs/src/modules/components/EditPage.js
index f137b95d2ea94b..68543aceb42e75 100644
--- a/docs/src/modules/components/EditPage.js
+++ b/docs/src/modules/components/EditPage.js
@@ -19,7 +19,7 @@ export default function EditPage(props) {
       component="a"
       href={
         userLanguage === 'en'
-          ? `${process.env.SOURCE_CODE_REPO}/edit/${process.env.DEFAULT_BRANCH}${sourceLocation}`
+          ? `${process.env.SOURCE_CODE_REPO}/edit/${process.env.SOURCE_GITHUB_BRANCH}${sourceLocation}`
           : `${CROWDIN_ROOT_URL}${crowdInLocale}#/${process.env.SOURCE_CODE_ROOT_URL.replace(
               'https://github.com/mui/',
               '',