diff --git a/backend/models/order.js b/backend/models/order.js
index 19c644e..8abf13f 100644
--- a/backend/models/order.js
+++ b/backend/models/order.js
@@ -5,6 +5,7 @@ const orderSchema = mongoose.Schema({
 	session: {type: String, required: true},
 	timestamp: {type: Date, required: true, default: Date.now},
 	closed: { type: Boolean, required: true, default:false },
+	price: { type: Number, required: true},
 	lines: [{
 		qty: {type: Number, required: true, default: 1},
 		name: { type: String, required: true},
diff --git a/src/app/order/order.model.ts b/src/app/order/order.model.ts
index 0dd0991..efbd4df 100644
--- a/src/app/order/order.model.ts
+++ b/src/app/order/order.model.ts
@@ -6,5 +6,6 @@ export interface Order {
 	session: string,
 	timestamp?: string,
 	closed: boolean,
+	price?: number,
 	lines: LineItem[]
 }
diff --git a/src/app/viewer/viewer.component.ts b/src/app/viewer/viewer.component.ts
index 60ce54f..746ea94 100644
--- a/src/app/viewer/viewer.component.ts
+++ b/src/app/viewer/viewer.component.ts
@@ -4,14 +4,9 @@ import { MatDialog, MatDialogConfig } from '@angular/material/dialog';
 import { UserService } from '../user.service';
 import { FullnodeService } from '../fullnode.service';
 import { ItemService } from '../items/items.service';
-//import { NameDialogComponent } from '../namedialog/namedialog.component'; // TODO: connect dialog
 import { Subscription, Observable } from 'rxjs';
 
 import {Owner} from '../owner.model';
-//import { v4 as uuidv4 } from 'uuid';
-//var QRCode = require('easyqrcodejs');
-//var URLSafeBase64 = require('urlsafe-base64');
-//var Buffer = require('buffer/').Buffer;
 
 
 @Component({
@@ -42,6 +37,7 @@ export class ViewerComponent implements OnInit {
 	}
 
 	ngOnDestroy(){
+		this.ownerUpdate.unsubscribe();
 	}
 
 }