diff --git a/src/vs/base/browser/ui/list/listWidget.ts b/src/vs/base/browser/ui/list/listWidget.ts
index 1d2c65d40d22c13525971a13cc0df383b7be2ce7..e4c9599601b212d5305bbec69b20d84d3209ec3e 100644
--- a/src/vs/base/browser/ui/list/listWidget.ts
+++ b/src/vs/base/browser/ui/list/listWidget.ts
@@ -369,6 +369,7 @@ class TypeLabelController<T> implements IDisposable {
 			.filter(e => !isInputElement(e.target as HTMLElement))
 			.map(event => new StandardKeyboardEvent(event))
 			.filter(this.keyboardNavigationLabelProvider.mightProducePrintableCharacter ? e => this.keyboardNavigationLabelProvider.mightProducePrintableCharacter!(e) : e => mightProducePrintableCharacter(e))
+			.forEach(e => { e.stopPropagation(); e.preventDefault(); })
 			.map(event => event.browserEvent.key)
 			.event;