diff --git a/src/Plugin/Field/FieldWidget/DynamicEntityReferenceWidget.php b/src/Plugin/Field/FieldWidget/DynamicEntityReferenceWidget.php
index 7568058..f606aa1 100644
--- a/src/Plugin/Field/FieldWidget/DynamicEntityReferenceWidget.php
+++ b/src/Plugin/Field/FieldWidget/DynamicEntityReferenceWidget.php
@@ -47,7 +47,7 @@ class DynamicEntityReferenceWidget extends EntityReferenceAutocompleteWidget {
 
     $settings = $this->getFieldSettings();
     $labels = \Drupal::entityManager()->getEntityTypeLabels();
-    $available = DynamicEntityReferenceItem::getTargetTypes($settings);
+    $available = DynamicEntityReferenceItem::getTargetTypes($settings, TRUE);
     $cardinality = $items->getFieldDefinition()->getFieldStorageDefinition()->getCardinality();
     $target_type = $items->get($delta)->target_type ?: reset($available);
 
diff --git a/tests/src/Functional/DynamicEntityReferenceTest.php b/tests/src/Functional/DynamicEntityReferenceTest.php
index c94bd5f..f631b79 100644
--- a/tests/src/Functional/DynamicEntityReferenceTest.php
+++ b/tests/src/Functional/DynamicEntityReferenceTest.php
@@ -47,6 +47,7 @@ class DynamicEntityReferenceTest extends BrowserTestBase {
     'field_ui',
     'dynamic_entity_reference',
     'entity_test',
+    'config_test',
   ];
 
   /**
@@ -466,7 +467,117 @@ class DynamicEntityReferenceTest extends BrowserTestBase {
     $assert_session->pageTextContains($this->adminUser->label());
     $assert_session->pageTextContains('tag');
     $assert_session->pageTextContains($term->label());
+  }
+
+  /**
+    * Tests that config entities are autocreated.
+   */
+  public function testAutoCreateConfigEntities() {
+    $this->drupalLogin($this->adminUser);
+
+    \Drupal::service('module_installer')->install(['taxonomy']);
+    $vocabulary = Vocabulary::create([
+      'name' => $this->randomMachineName(),
+      'vid' => Unicode::strtolower($this->randomMachineName()),
+      'langcode' => LanguageInterface::LANGCODE_NOT_SPECIFIED,
+    ]);
+    $vocabulary->save();
+    $term = Term::create([
+      'name' => $this->randomMachineName(),
+      'vid' => $vocabulary->id(),
+      'langcode' => LanguageInterface::LANGCODE_NOT_SPECIFIED,
+    ]);
+    $term->save();
+
+    /** @var \Drupal\field\FieldStorageConfigInterface $storage */
+    $storage = $this->container->get('entity_type.manager')
+      ->getStorage('field_storage_config')
+      ->create([
+        'field_name' => 'field_foobar',
+        'entity_type' => 'entity_test',
+        'type' => 'dynamic_entity_reference',
+        'cardinality' => FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED,
+        'settings' => [
+          'exclude_entity_types' => FALSE,
+          'entity_type_ids' => [
+            'taxonomy_term',
+            'user',
+            'config_test',
+          ],
+        ],
+      ]);
+    $storage->save();
+
+    /** @var \Drupal\field\FieldConfigInterface $field */
+    $field = $this->container->get('entity_type.manager')
+      ->getStorage('field_config')
+      ->create([
+        'field_name' => 'field_foobar',
+        'entity_type' => 'entity_test',
+        'bundle' => 'entity_test',
+        'label' => 'Foobar',
+        'settings' => [
+          'user' => [
+            'handler' => 'default:user',
+            'handler_settings' => [],
+          ],
+          'taxonomy_term' => [
+            'handler' => 'default:taxonomy_term',
+            'handler_settings' => [
+              'target_bundles' => [$vocabulary->id() => $vocabulary->id()],
+              'sort' => ['field' => '_none'],
+              'auto_create' => TRUE,
+              'auto_create_bundle' => FALSE,
+            ],
+          ],
+          'config_test' => [
+            'handler' => 'default:config_test',
+            'handler_settings' => [
+              'target_bundles' => ['config_test' => 'config_test'],
+              'sort' => ['field' => '_none'],
+              'auto_create' => TRUE,
+              'auto_create_bundle' => FALSE,
+            ],
+          ],
+        ],
+      ]);
+    $field->save();
+
+    entity_get_form_display('entity_test', 'entity_test', 'default')
+      ->setComponent('field_foobar', [
+        'type' => 'dynamic_entity_reference_default',
+        'settings' => [
+          'match_operator' => 'CONTAINS',
+          'size' => 40,
+          'placeholder' => '',
+        ],
+      ])
+      ->save();
+
+    // Add a non-existent config_test item.
+    $this->drupalGet('entity_test/add');
+
+    // Add some extra dynamic entity reference fields.
+    $this->getSession()->getPage()->findButton('Add another item')->click();
+    $this->getSession()->getPage()->findButton('Add another item')->click();
+    $edit = [
+      'field_foobar[0][target_id]' => $this->adminUser->label() . ' (' . $this->adminUser->id() . ')',
+      'field_foobar[0][target_type]' => 'user',
+      // Add a non-existing term.
+      'field_foobar[1][target_id]' => 'tag',
+      'field_foobar[1][target_type]' => 'taxonomy_term',
+      'field_foobar[2][target_id]' => 'test',
+      'field_foobar[2][target_type]' => 'config_test',
+      'name[0][value]' => 'Another',
+      'user_id[0][target_id]' => $this->adminUser->label() . ' (' . $this->adminUser->id() . ')',
+    ];
 
+    $this->submitForm($edit, t('Save'));
+
+    $entities = \Drupal::entityTypeManager()
+      ->getStorage('entity_test')
+      ->loadByProperties(['name' => 'Another']);
+    $this->assertCount(1, $entities, 'Entity was saved');
   }
 
   /**