diff --git a/PHPUnit/Util/Configuration.php b/PHPUnit/Util/Configuration.php
index b1cb3e841b5..546b12f2918 100644
--- a/PHPUnit/Util/Configuration.php
+++ b/PHPUnit/Util/Configuration.php
@@ -859,6 +859,11 @@ protected function getTestSuite(DOMElement $testSuiteNode)
 
             // Get the absolute path to the file
             $file = $fileIteratorFacade->getFilesAsArray($file);
+
+            if (!isset($file[0])) {
+                continue;
+            }
+
             $file = $file[0];
 
             if ($fileNode->hasAttribute('phpVersion')) {