diff --git a/core/modules/system/tests/src/Functional/Module/VersionTest.php b/core/modules/system/tests/src/Functional/Module/VersionTest.php
index 0eba951a4a..7b325fef8f 100644
--- a/core/modules/system/tests/src/Functional/Module/VersionTest.php
+++ b/core/modules/system/tests/src/Functional/Module/VersionTest.php
@@ -48,8 +48,8 @@ public function testModuleVersions() {
     $n = count($dependencies);
     for ($i = 0; $i < $n; $i++) {
       $this->drupalGet('admin/modules');
-      $checkbox = $this->xpath('//input[@id="edit-modules-module-test-enable" and @disabled="disabled"]');
-      $this->assertEqual(!empty($checkbox), $i % 2, $dependencies[$i]);
+      $checkbox = $this->xpath('//input[@id="edit-modules-module-test-enable"]');
+      $this->assertEqual(!empty($checkbox[0]->getAttribute('disabled')), $i % 2, $dependencies[$i]);
     }
   }