diff --git a/src/vs/workbench/api/browser/mainThreadAuthentication.ts b/src/vs/workbench/api/browser/mainThreadAuthentication.ts
index f2cc04cd726..19e704dff86 100644
--- a/src/vs/workbench/api/browser/mainThreadAuthentication.ts
+++ b/src/vs/workbench/api/browser/mainThreadAuthentication.ts
@@ -40,6 +40,8 @@ export class MainThreadAuthenticationProvider extends Disposable {
 
 		const quickPick = this.quickInputService.createQuickPick<{ label: string, description: string, extension: AllowedExtension }>();
 		quickPick.canSelectMany = true;
+		quickPick.customButton = true;
+		quickPick.customLabel = nls.localize('manageTrustedExtensions.cancel', 'Cancel');
 		const usages = readAccountUsages(this.storageService, this.id, accountName);
 		const items = allowedExtensions.map(extension => {
 			const usage = usages.find(usage => extension.id === usage.extensionId);
@@ -68,6 +70,10 @@ export class MainThreadAuthenticationProvider extends Disposable {
 			quickPick.dispose();
 		});
 
+		quickPick.onDidCustom(() => {
+			quickPick.hide();
+		});
+
 		quickPick.show();
 	}