diff --git a/client/src/templates/Challenges/classic/mobile-layout.tsx b/client/src/templates/Challenges/classic/mobile-layout.tsx
index 0b1757ba511..fdd73f11111 100644
--- a/client/src/templates/Challenges/classic/mobile-layout.tsx
+++ b/client/src/templates/Challenges/classic/mobile-layout.tsx
@@ -94,7 +94,6 @@ class MobileLayout extends Component<MobileLayoutProps, MobileLayoutState> {
           )}
           <TabPane
             eventKey={Tab.Editor}
-            tabIndex='0'
             title={i18next.t('learn.editor-tabs.code')}
             {...editorTabPaneProps}
           >