diff --git a/UI/src/app/attachphoto/photolist.ts b/UI/src/app/attachphoto/photolist.ts
index 6b0b1c2..f477939 100644
--- a/UI/src/app/attachphoto/photolist.ts
+++ b/UI/src/app/attachphoto/photolist.ts
@@ -64,7 +64,7 @@ export class PhotoList implements OnInit, OnDestroy {
         mx = id;
       }
     }
-    this._id = -1 + mx;
+    this._id = -1 * mx;
   }
   downloadAttachment(id: number): void {
     //GetReportFile