diff --git a/packages/docusaurus/src/server/__tests__/configValidation.test.ts b/packages/docusaurus/src/server/__tests__/configValidation.test.ts
index 815857d1ff..678cbc4ef5 100644
--- a/packages/docusaurus/src/server/__tests__/configValidation.test.ts
+++ b/packages/docusaurus/src/server/__tests__/configValidation.test.ts
@@ -473,6 +473,12 @@ describe('i18n', () => {
           baseUrl: '/myBase/Url/',
         });
       });
+
+      it('accepts translate true', () => {
+        expect(normalizeLocaleConfig({translate: true})).toEqual({
+          translate: true,
+        });
+      });
     });
   });
 });
diff --git a/packages/docusaurus/src/server/configValidation.ts b/packages/docusaurus/src/server/configValidation.ts
index 5f6059bfa6..ce69e43e46 100644
--- a/packages/docusaurus/src/server/configValidation.ts
+++ b/packages/docusaurus/src/server/configValidation.ts
@@ -252,6 +252,7 @@ const LocaleConfigSchema = Joi.object<I18nLocaleConfig>({
   direction: Joi.string().equal('ltr', 'rtl'),
   calendar: Joi.string(),
   path: Joi.string(),
+  translate: Joi.boolean(),
   url: SiteUrlSchema,
   baseUrl: BaseUrlSchema,
 });