diff --git a/core/modules/views/src/Plugin/views/PluginBase.php b/core/modules/views/src/Plugin/views/PluginBase.php
index 4c0e931..e648cb6 100644
--- a/core/modules/views/src/Plugin/views/PluginBase.php
+++ b/core/modules/views/src/Plugin/views/PluginBase.php
@@ -538,15 +538,18 @@ protected function listLanguages($flags = LanguageInterface::STATE_ALL, array $c
 
     // Add in negotiated languages, if requested.
     if ($flags & PluginBase::INCLUDE_NEGOTIATED) {
+      $types_info = $manager->getDefinedLanguageTypesInfo();
       $types = $manager->getLanguageTypes();
-      foreach ($types as $id => $type) {
-        // Surround IDs by '***LANGUAGE_...***', to avoid query collisions.
-        $id = '***LANGUAGE_' . $id . '***';
-        $list[$id] = $this->t('!type language selected for page', array('!type' => $type['name']));
+      foreach ($types as $id) {
+        if (isset($types_info[$id]['name'])) {
+          $name = $types_info[$id]['name'];
+          // Surround IDs by '***LANGUAGE_...***', to avoid query collisions.
+          $id = '***LANGUAGE_' . $id . '***';
+          $list[$id] = $this->t('!type language selected for page', array('!type' => $name));
+        }
       }
       if (!empty($current_values)) {
-        $types = $manager->getDefinedLanguageTypesInfo();
-        foreach ($types as $id => $type) {
+        foreach ($types_info as $id => $type) {
           $id = '***LANGUAGE_' . $id . '***';
           // If this (non-configurable) type is among the current values,
           // add that option too, so it is not lost. If not among the current