diff --git a/src/app/business/block/cloud-block-service/cloud-block-service.component.ts b/src/app/business/block/cloud-block-service/cloud-block-service.component.ts
index 537a4ba8..1e1b3fa9 100644
--- a/src/app/business/block/cloud-block-service/cloud-block-service.component.ts
+++ b/src/app/business/block/cloud-block-service/cloud-block-service.component.ts
@@ -147,10 +147,8 @@ export class CloudBlockServiceComponent implements OnInit{
                 if(element.type == 'aws-file'){
                     this.selectedBackends.push(element);
                 }
-                this.backendId = this.selectedBackends[0]['id'];
-
-
             });
+            this.backendId = this.selectedBackends[0]['id'];
             if(this.backendId){
                 this.cloudBS.getVolumesByBackend(this.backendId).subscribe((res) => {
                     let vols = res.json() && res.json().volumes ? res.json().volumes : [];