diff --git a/core/modules/link/src/Plugin/Field/FieldWidget/LinkWidget.php b/core/modules/link/src/Plugin/Field/FieldWidget/LinkWidget.php
index e1b1c2a..b9153a7 100755
--- a/core/modules/link/src/Plugin/Field/FieldWidget/LinkWidget.php
+++ b/core/modules/link/src/Plugin/Field/FieldWidget/LinkWidget.php
@@ -71,10 +71,14 @@ protected static function getUriAsDisplayableString($uri) {
     }
     elseif ($scheme === 'entity') {
       list($entity_type, $entity_id) = explode('/', substr($uri, 7), 2);
-      // Show the 'entity:' URI as the entity autocomplete would.
-      $entity_manager = \Drupal::entityManager();
-      if ($entity_manager->getDefinition($entity_type, FALSE) && $entity = \Drupal::entityManager()->getStorage($entity_type)->load($entity_id)) {
-        $displayable_string = EntityAutocomplete::getEntityLabels([$entity]);
+      // @todo Support entity types other than 'node'. Will be fixed in
+      //    https://www.drupal.org/node/2423093.
+      if($entity_type == 'node') {
+        // Show the 'entity:' URI as the entity autocomplete would.
+        $entity_manager = \Drupal::entityManager();
+        if ($entity_manager->getDefinition($entity_type, FALSE) && $entity = \Drupal::entityManager()->getStorage($entity_type)->load($entity_id)) {
+          $displayable_string = EntityAutocomplete::getEntityLabels([$entity]);
+        }
       }
     }