diff --git a/src/vs/workbench/services/userDataSync/browser/userDataAutoSyncService.ts b/src/vs/workbench/services/userDataSync/browser/userDataAutoSyncService.ts
index fa85c6a2f54..47f86b1706d 100644
--- a/src/vs/workbench/services/userDataSync/browser/userDataAutoSyncService.ts
+++ b/src/vs/workbench/services/userDataSync/browser/userDataAutoSyncService.ts
@@ -9,7 +9,7 @@ import { IWorkbenchEnvironmentService } from 'vs/workbench/services/environment/
 
 export class WebUserDataAutoSyncService extends UserDataAutoSyncService implements IUserDataAutoSyncService {
 
-	private readonly workbenchEnvironmentService: IWorkbenchEnvironmentService = <IWorkbenchEnvironmentService>this.environmentService;
+	private get workbenchEnvironmentService(): IWorkbenchEnvironmentService { return <IWorkbenchEnvironmentService>this.environmentService; }
 	private enabled: boolean | undefined = undefined;
 
 	isEnabled(): boolean {