diff --git a/js/main.js b/js/main.js
index 0a0405d..3307cf2 100644
--- a/js/main.js
+++ b/js/main.js
@@ -54,6 +54,13 @@ document.querySelectorAll('.lang-btn').forEach(btn => {
     document.body.dataset.lang = lang;
     document.querySelectorAll('.lang-btn').forEach(b => b.classList.remove('active'));
     btn.classList.add('active');
+    // Reload active tab content with new language
+    const activeTab = document.querySelector('.notebook .tab.active');
+    if (activeTab) {
+      const tabName = activeTab.dataset.tab;
+      if (tabName === 'users') loadUsers();
+      if (tabName === 'wiki') loadWiki();
+    }
   });
 });