diff --git a/packages/docusaurus/src/server/__tests__/__fixtures__/custom-i18n-site/i18n/zh-Hans-custom/README.md b/packages/docusaurus/src/server/__tests__/__fixtures__/custom-i18n-site/i18n/zh-Hans-custom/README.md
new file mode 100644
index 0000000000..0d736fa79c
--- /dev/null
+++ b/packages/docusaurus/src/server/__tests__/__fixtures__/custom-i18n-site/i18n/zh-Hans-custom/README.md
@@ -0,0 +1 @@
+Since i18n/zh-Hans-custom folder exists, zh-Hans locale should infer to translate = true