diff --git a/tine20/Sales/js/InvoiceEditDialog.js b/tine20/Sales/js/InvoiceEditDialog.js
index 9558825c08..85c67adec9 100644
--- a/tine20/Sales/js/InvoiceEditDialog.js
+++ b/tine20/Sales/js/InvoiceEditDialog.js
@@ -195,6 +195,14 @@ Tine.Sales.InvoiceEditDialog = Ext.extend(Tine.widgets.dialog.EditDialog, {
         }
     },
 
+    onAfterRecordLoad: function () {
+        this.supr().onAfterRecordLoad.apply(this, arguments);
+
+        if (!this.record.id) {
+            this.getForm().findField('type').setValue('INVOICE');
+        }
+    },
+
     /**
      * loads the address to the plaintext field
      */
diff --git a/tine20/Sales/js/Model/Document/AbstractMixin.js b/tine20/Sales/js/Model/Document/AbstractMixin.js
index 1dccd514a3..05fbbe348d 100644
--- a/tine20/Sales/js/Model/Document/AbstractMixin.js
+++ b/tine20/Sales/js/Model/Document/AbstractMixin.js
@@ -27,5 +27,8 @@ Tine.Sales.Model.Document_OfferMixin = AbstractMixin
 Tine.Sales.Model.Document_OrderMixin = AbstractMixin
 Tine.Sales.Model.Document_DeliveryMixin = AbstractMixin
 Tine.Sales.Model.Document_InvoiceMixin = AbstractMixin
+Tine.Sales.Model.Document_CustomerMixin = AbstractMixin
+Tine.Sales.Model.InvoiceMixin = AbstractMixin
+Tine.Sales.Model.CustomerMixin = AbstractMixin
 
 export default AbstractMixin