diff --git a/www/Subscription.js b/www/Subscription.js
index 7f1de468..0780c4d4 100644
--- a/www/Subscription.js
+++ b/www/Subscription.js
@@ -8,7 +8,8 @@ Ext.define('PBS.SubscriptionKeyEdit', {
     onlineHelp: 'get_help',
 
     items: {
-	xtype: 'textfield',
+	xtype: 'proxmoxtextfield',
+	trimValue: true,
 	labelWidth: 120,
 	name: 'key',
 	value: '',