diff --git a/app/code/Magento/Customer/Model/Customer.php b/app/code/Magento/Customer/Model/Customer.php
index 53cd1bcc12a9af2777b734a6af62f65bce1c50af..4516a33962aeaf0dc49c9494185833f9b70da240 100644
--- a/app/code/Magento/Customer/Model/Customer.php
+++ b/app/code/Magento/Customer/Model/Customer.php
@@ -22,7 +22,7 @@ use Magento\Framework\Indexer\StateInterface;
  * Customer model
  *
  * @method int getWebsiteId() getWebsiteId()
- * @method Customer setWebsiteId(int)
+ * @method Customer setWebsiteId($value)
  * @method int getStoreId() getStoreId()
  * @method string getEmail() getEmail()
  * @method ResourceCustomer _getResource()
diff --git a/app/code/Magento/Ui/Component/Form/Element/MultiSelect.php b/app/code/Magento/Ui/Component/Form/Element/MultiSelect.php
new file mode 100644
index 0000000000000000000000000000000000000000..93fd7f600e0f3a95032164f880a0cc46ba3b437a
--- /dev/null
+++ b/app/code/Magento/Ui/Component/Form/Element/MultiSelect.php
@@ -0,0 +1,24 @@
+<?php
+/**
+ * Copyright © 2015 Magento. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\Ui\Component\Form\Element;
+
+class MultiSelect extends Select
+{
+    const NAME = 'multiselect';
+
+    const DEFAULT_SIZE = 6;
+
+    /**
+     * @inheritDoc
+     */
+    public function prepare()
+    {
+        $config['size'] = self::DEFAULT_SIZE;
+        $this->setData('config', array_replace_recursive((array)$this->getData('config'), $config));
+        parent::prepare();
+    }
+}
diff --git a/app/code/Magento/Ui/view/base/ui_component/etc/definition.xml b/app/code/Magento/Ui/view/base/ui_component/etc/definition.xml
index b8485998fec512fafd41dc1aa3dcf606a16b6e7e..090c3a9e277a5a1766d28d2dd804c87f44d38311 100755
--- a/app/code/Magento/Ui/view/base/ui_component/etc/definition.xml
+++ b/app/code/Magento/Ui/view/base/ui_component/etc/definition.xml
@@ -199,7 +199,7 @@
             </item>
         </argument>
     </select>
-    <multiselect class="Magento\Ui\Component\Form\Element\Select">
+    <multiselect class="Magento\Ui\Component\Form\Element\MultiSelect">
         <argument name="data" xsi:type="array">
             <item name="template" xsi:type="string">ui/form/element/multiselect</item>
             <item name="js_config" xsi:type="array">
@@ -209,6 +209,9 @@
                     <item name="elementTmpl" xsi:type="string">ui/form/element/multiselect</item>
                 </item>
             </item>
+            <item name="config" xsi:type="array">
+                <item name="size" xsi:type="string">6</item>
+            </item>
         </argument>
     </multiselect>
     <textarea class="Magento\Ui\Component\Form\Element\Textarea">