diff --git a/assets/js/src/newsletters/send.jsx b/assets/js/src/newsletters/send.jsx
index b1a8b6df1c..29952d8f81 100644
--- a/assets/js/src/newsletters/send.jsx
+++ b/assets/js/src/newsletters/send.jsx
@@ -37,6 +37,9 @@ define(
         multiple: true,
         filter: function(segment) {
           return !!(!segment.deleted_at);
+        },
+        validation: {
+          'data-parsley-required': true
         }
       },
       {
diff --git a/lib/Config/Initializer.php b/lib/Config/Initializer.php
index f6e3b19bf7..9dd5dfcd00 100644
--- a/lib/Config/Initializer.php
+++ b/lib/Config/Initializer.php
@@ -55,7 +55,7 @@ class Initializer {
     $subscriber_custom_field = Env::$db_prefix . 'subscriber_custom_field';
     $newsletter_option_fields = Env::$db_prefix . 'newsletter_option_fields';
     $newsletter_option = Env::$db_prefix . 'newsletter_option';
-    $sending_queue = Env::$db_prefix . 'sending_queue';
+    $sending_queues = Env::$db_prefix . 'sending_queues';
     $newsletter_statistics = Env::$db_prefix . 'newsletter_statistics';
 
     define('MP_SUBSCRIBERS_TABLE', $subscribers);
@@ -72,7 +72,7 @@ class Initializer {
     define('MP_SUBSCRIBER_CUSTOM_FIELD_TABLE', $subscriber_custom_field);
     define('MP_NEWSLETTER_OPTION_FIELDS_TABLE', $newsletter_option_fields);
     define('MP_NEWSLETTER_OPTION_TABLE', $newsletter_option);
-    define('MP_SENDING_QUEUE_TABLE', $sending_queue);
+    define('MP_SENDING_QUEUE_TABLE', $sending_queues);
     define('MP_NEWSLETTER_STATISTICS_TABLE', $newsletter_statistics);
   }
 
@@ -128,7 +128,7 @@ class Initializer {
     $hooks = new Hooks();
     $hooks->init();
   }
-  
+
   function setupPublicAPI() {
     $publicAPI = new PublicAPI();
     $publicAPI->init();
diff --git a/lib/Config/Migrator.php b/lib/Config/Migrator.php
index 6c9618bdcc..ebe05c50a7 100644
--- a/lib/Config/Migrator.php
+++ b/lib/Config/Migrator.php
@@ -21,7 +21,7 @@ class Migrator {
       'subscriber_custom_field',
       'newsletter_option_fields',
       'newsletter_option',
-      'sending_queue',
+      'sending_queues',
       'newsletter_statistics',
       'forms'
     );
@@ -210,7 +210,7 @@ class Migrator {
     return $this->sqlify(__FUNCTION__, $attributes);
   }
 
-  function sending_queue() {
+  function sending_queues() {
     $attributes = array(
       'id mediumint(9) NOT NULL AUTO_INCREMENT,',
       'newsletter_id mediumint(9) NOT NULL,',