diff --git a/core/tests/Drupal/KernelTests/Core/Entity/ConfigEntityQueryTest.php b/core/tests/Drupal/KernelTests/Core/Entity/ConfigEntityQueryTest.php
index 91b2482..31ec880 100644
--- a/core/tests/Drupal/KernelTests/Core/Entity/ConfigEntityQueryTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Entity/ConfigEntityQueryTest.php
@@ -61,8 +61,15 @@ protected function setUp() {
     $array['level1a']['level2'] = 9;
     // The tests match array.level1.level2.
     $array['level1']['level2'] = 1;
+
+    // Avoid the word 'test' in the label because filter by label with the word
+    // 'test' may randomly fail.
+    do {
+      $label = $this->randomMachineName();
+    } while (stripos($label, 'test') !== FALSE);
+
     $entity = ConfigQueryTest::create([
-      'label' => $this->randomMachineName(),
+      'label' => $label,
       'id' => '1',
       'number' => 31,
       'array' => $array,
@@ -73,7 +80,7 @@ protected function setUp() {
 
     $array['level1']['level2'] = 2;
     $entity = ConfigQueryTest::create([
-      'label' => $this->randomMachineName(),
+      'label' => $label,
       'id' => '2',
       'number' => 41,
       'array' => $array,