diff --git a/lib/common/components/Tabs/tabs.js b/lib/common/components/Tabs/tabs.js
index e9cd76db..be638353 100644
--- a/lib/common/components/Tabs/tabs.js
+++ b/lib/common/components/Tabs/tabs.js
@@ -51,6 +51,7 @@ export class Tabs {
 })
 export class Tab {
   constructor(tabs) {
+    this.active = false;
     tabs.addTab(this);
   }
 }