diff --git a/src/TemporaryDirectory.php b/src/TemporaryDirectory.php
index 4464834..71d14a3 100644
--- a/src/TemporaryDirectory.php
+++ b/src/TemporaryDirectory.php
@@ -168,7 +168,7 @@ protected function deleteDirectory(string $path): bool
             }
 
             foreach (new FilesystemIterator($path) as $item) {
-                if (! $this->deleteDirectory($item)) {
+                if (! $this->deleteDirectory((string) $item)) {
                     return false;
                 }
             }