diff --git a/core/modules/views_ui/src/Tests/HandlerTest.php b/core/modules/views_ui/src/Tests/HandlerTest.php
index 5a00b03..200937f 100644
--- a/core/modules/views_ui/src/Tests/HandlerTest.php
+++ b/core/modules/views_ui/src/Tests/HandlerTest.php
@@ -163,7 +163,7 @@ public function testBrokenHandlers() {
 
       $this->drupalGet($href);
       $result = $this->xpath('//h1');
-      $this->assertTrue(strpos((string) $result[0], $text) !== FALSE, 'Ensure the broken handler text was found.');
+      $this->assertTrue(strpos((string) $result[0], (string) $text) !== FALSE, 'Ensure the broken handler text was found.');
 
       $description_args = array(
         '@module' => 'views',