diff --git a/_templates/index.html b/_templates/index.html
index 8d61dd30..08a90d7e 100755
--- a/_templates/index.html
+++ b/_templates/index.html
@@ -19,7 +19,7 @@ id: index
 {% else %}
 
 <p class="mainsummary">{% translate listintro %}</p>
-<div class="mainvideo"><iframe src="//www.youtube.com/embed/Um63OQz3bjo{% if page.lang != 'en' %}?cc_load_policy=1{% endif %}" frameborder="0" allowfullscreen></iframe></div>
+<div class="mainvideo"><iframe src="//www.youtube.com/embed/Um63OQz3bjo{% if page.lang != 'en' %}?cc_load_policy=1&hl={{ page.lang }}&cc_lang_pref={{ page.lang }}{% endif %}" frameborder="0" allowfullscreen></iframe></div>
 <div class="mainlist">
   <div><div><img src="/img/main_ico_instant.svg" alt="Icon"><div>{% translate list1 %}</div></div></div>
   <div><div><img src="/img/main_ico_worldwide.svg" alt="Icon"><div>{% translate list2 %}</div></div></div>