diff --git a/sources/tmgmt_config/src/ConfigSourcePluginUi.php b/sources/tmgmt_config/src/ConfigSourcePluginUi.php
index 7dca1d1..f22d97d 100644
--- a/sources/tmgmt_config/src/ConfigSourcePluginUi.php
+++ b/sources/tmgmt_config/src/ConfigSourcePluginUi.php
@@ -40,8 +40,7 @@ class ConfigSourcePluginUi extends SourcePluginUiBase {
     $form = parent::overviewSearchFormPart($form, $form_state, $type);
 
     if ($type == ConfigSource::SIMPLE_CONFIG) {
-      $label_key = 'name';
-      $label = t('Simple configuration');
+      return array();
     }
     else {
       $entity_type = \Drupal::entityManager()->getDefinition($type);
diff --git a/sources/tmgmt_config/src/Tests/ConfigSourceListTest.php b/sources/tmgmt_config/src/Tests/ConfigSourceListTest.php
index ac066d9..f9fe4f1 100644
--- a/sources/tmgmt_config/src/Tests/ConfigSourceListTest.php
+++ b/sources/tmgmt_config/src/Tests/ConfigSourceListTest.php
@@ -234,6 +234,9 @@ class ConfigSourceListTest extends EntityTestBase {
     // Assert some basic strings on that page.
     $this->assertText(t('Simple configuration overview (Config Entity)'));
 
+    // Assert no option to search.
+    $this->assertNoFieldById('edit-search-submit', 'Search');
+
     // Request a translation for Site information settings.
     $edit = array(
       'items[system.site_information_settings]' => TRUE,