1 files changed, 3 insertions, 0 deletions
diff --git a/docs/src/components/Header/LanguageSelect.tsx b/docs/src/components/Header/LanguageSelect.tsx
index 6385afdd3..ec80d0340 100644
--- a/docs/src/components/Header/LanguageSelect.tsx
+++ b/docs/src/components/Header/LanguageSelect.tsx
@@ -88,6 +88,9 @@ const LanguageSelect: FunctionalComponent<{ lang: string }> = ({ lang }) => {
         <option value="da">
           <span>Dansk</span>
         </option>
+        <option value="ja">
+          <span>日本語</span>
+        </option>
       </select>
     </div>
   );