diff --git a/src/_assets/css/parts/menu.css b/src/_assets/css/parts/menu.css
index bebfa28..ed5fa09 100644
--- a/src/_assets/css/parts/menu.css
+++ b/src/_assets/css/parts/menu.css
@@ -176,3 +176,7 @@ header.menu .nav-langs .lang-separator {
 header.menu .nav-langs .lang-separator:first-child {
   display: none;
 }
+
+header.menu .nav-langs a.active {
+  border-color: var(--color-fg);
+}
diff --git a/src/_includes/parts/menu.njk b/src/_includes/parts/menu.njk
index 8ac0b5c..3ccdec1 100644
--- a/src/_includes/parts/menu.njk
+++ b/src/_includes/parts/menu.njk
@@ -51,7 +51,12 @@
         {% else %}
           {% set lang_href = page.url | locale_url(lang) %}
         {% endif %}
-        <a href="{{ lang_href }}">{{ lang }}</a>
+        <a
+          class="{% if lang === page.lang %} active {% endif %}"
+          href="{{ lang_href }}"
+        >
+          {{ lang }}
+        </a>
       </li>
     {%- endfor %}
     </ul>