diff --git a/js/main.js b/js/main.js
index 84bd779..7886fff 100644
--- a/js/main.js
+++ b/js/main.js
@@ -334,7 +334,7 @@ async function loadWiki() {
         topicDiv.innerHTML = `
           <h4 class="hide-de topic-title">${topicName}</h4>
           <h4 class="hide-en topic-title">${topicName}</h4>
-          <div class="wiki-subtopics"></div>
+          <div class="wiki-subtopics hidden"></div>
         `;
         wikiContainer.appendChild(topicDiv);