diff --git a/src/WrapperRunner/WrapperRunner.php b/src/WrapperRunner/WrapperRunner.php
index 6676c48d..6982d818 100644
--- a/src/WrapperRunner/WrapperRunner.php
+++ b/src/WrapperRunner/WrapperRunner.php
@@ -49,6 +49,10 @@ final class WrapperRunner implements RunnerInterface
     /** @var array<int,int> */
     private array $batches = [];
 
+    /** @var list<SplFileInfo> */
+    private array $statusFiles = [];
+    /** @var list<SplFileInfo> */
+    private array $progressFiles = [];
     /** @var list<SplFileInfo> */
     private array $testresultFiles = [];
     /** @var list<SplFileInfo> */
@@ -204,7 +208,10 @@ private function startWorker(int $token): WrapperWorker
         $worker->start();
         $this->batches[$token] = 0;
 
+        $this->statusFiles[]     = $worker->statusFile;
+        $this->progressFiles[]   = $worker->progressFile;
         $this->testresultFiles[] = $worker->testresultFile;
+
         if (isset($worker->junitFile)) {
             $this->junitFiles[] = $worker->junitFile;
         }
@@ -289,6 +296,8 @@ private function complete(TestResult $testResultSum): int
             $testResultSum,
         );
 
+        $this->clearFiles($this->statusFiles);
+        $this->clearFiles($this->progressFiles);
         $this->clearFiles($this->testresultFiles);
         $this->clearFiles($this->coverageFiles);
         $this->clearFiles($this->junitFiles);
diff --git a/src/WrapperRunner/WrapperWorker.php b/src/WrapperRunner/WrapperWorker.php
index 1030997c..a6d9c5f5 100644
--- a/src/WrapperRunner/WrapperWorker.php
+++ b/src/WrapperRunner/WrapperWorker.php
@@ -30,19 +30,19 @@ final class WrapperWorker
 {
     public const COMMAND_EXIT = "EXIT\n";
 
+    public readonly SplFileInfo $statusFile;
     public readonly SplFileInfo $progressFile;
     public readonly SplFileInfo $testresultFile;
     public readonly SplFileInfo $junitFile;
     public readonly SplFileInfo $coverageFile;
     public readonly SplFileInfo $teamcityFile;
-    public readonly SplFileInfo $testdoxFile;
 
+    public readonly SplFileInfo $testdoxFile;
     private ?string $currentlyExecuting = null;
     private Process $process;
     private int $inExecution = 0;
     private InputStream $input;
     private int $exitCode = -1;
-    private string $statusFilepath;
 
     /** @param non-empty-string[] $parameters */
     public function __construct(
@@ -51,15 +51,15 @@ public function __construct(
         array $parameters,
         private readonly int $token
     ) {
-        $commonTmpFilePath    = sprintf(
+        $commonTmpFilePath = sprintf(
             '%s%sworker_%02s_stdout_%s_',
             $options->tmpDir,
             DIRECTORY_SEPARATOR,
             $token,
             uniqid(),
         );
-        $this->statusFilepath = $commonTmpFilePath . 'status';
-        touch($this->statusFilepath);
+        $this->statusFile  = new SplFileInfo($commonTmpFilePath . 'status');
+        touch($this->statusFile->getPathname());
         $this->progressFile = new SplFileInfo($commonTmpFilePath . 'progress');
         touch($this->progressFile->getPathname());
         $this->testresultFile = new SplFileInfo($commonTmpFilePath . 'testresult');
@@ -80,7 +80,7 @@ public function __construct(
         }
 
         $parameters[] = '--status-file';
-        $parameters[] = $this->statusFilepath;
+        $parameters[] = $this->statusFile->getPathname();
         $parameters[] = '--progress-file';
         $parameters[] = $this->progressFile->getPathname();
         $parameters[] = '--testresult-file';
@@ -181,12 +181,13 @@ public function stop(): void
 
     public function isFree(): bool
     {
-        clearstatcache(true, $this->statusFilepath);
+        $statusFilepath = $this->statusFile->getPathname();
+        clearstatcache(true, $statusFilepath);
 
-        $isFree = $this->inExecution === filesize($this->statusFilepath);
+        $isFree = $this->inExecution === filesize($statusFilepath);
 
         if ($isFree && $this->inExecution > 0) {
-            $exitCodes = file_get_contents($this->statusFilepath);
+            $exitCodes = file_get_contents($statusFilepath);
             assert(is_string($exitCodes) && $exitCodes !== '');
             $this->exitCode = (int) $exitCodes[-1];
         }
diff --git a/test/TestBase.php b/test/TestBase.php
index 9b3f3b1b..64a2e028 100644
--- a/test/TestBase.php
+++ b/test/TestBase.php
@@ -25,8 +25,7 @@ abstract class TestBase extends TestCase
     protected string $runnerClass = WrapperRunner::class;
     /** @var array<string, string|bool|int|null> */
     protected array $bareOptions = [];
-    /** @var string */
-    protected $tmpDir;
+    protected string $tmpDir;
 
     final protected function setUp(): void
     {
diff --git a/test/Unit/WrapperRunner/WrapperRunnerTest.php b/test/Unit/WrapperRunner/WrapperRunnerTest.php
index 66f9dc86..85f16df5 100644
--- a/test/Unit/WrapperRunner/WrapperRunnerTest.php
+++ b/test/Unit/WrapperRunner/WrapperRunnerTest.php
@@ -23,6 +23,7 @@
 use function defined;
 use function file_get_contents;
 use function file_put_contents;
+use function glob;
 use function min;
 use function posix_mkfifo;
 use function preg_match;
@@ -468,6 +469,9 @@ public function testRunningFewerTestsThanTheWorkersIsPossible(): void
 
         $runnerResult = $this->runRunner();
         self::assertEquals(0, $runnerResult->exitCode);
+        $glob = glob($this->tmpDir . '/*');
+        self::assertNotFalse($glob);
+        self::assertCount(0, $glob);
     }
 
     public function testResultsAreCorrect(): void