diff --git a/src/renderer/services/bs-downloader.service.ts b/src/renderer/services/bs-downloader.service.ts
index 1a51ea56..0ba86a91 100644
--- a/src/renderer/services/bs-downloader.service.ts
+++ b/src/renderer/services/bs-downloader.service.ts
@@ -14,6 +14,8 @@ export class BsDownloaderService{
     public readonly currentBsVersionDownload$: BehaviorSubject<BSVersion> = new BehaviorSubject(null);
     public readonly downloadProgress$: BehaviorSubject<number> = new BehaviorSubject(0);
 
+    public readonly selectedBsVersion$: BehaviorSubject<BSVersion> = new BehaviorSubject(null);
+
     public static getInstance(): BsDownloaderService{
         if(!BsDownloaderService.instance){ BsDownloaderService.instance = new BsDownloaderService(); }
         return BsDownloaderService.instance;