diff --git a/typo3/sysext/core/Classes/Utility/File/ExtendedFileUtility.php b/typo3/sysext/core/Classes/Utility/File/ExtendedFileUtility.php
index a5c22e7da5ab4d9fe247f2c267a7f095fabacdf7..953fc369e19826ede4200559226b8e5e2afb344d 100644
--- a/typo3/sysext/core/Classes/Utility/File/ExtendedFileUtility.php
+++ b/typo3/sysext/core/Classes/Utility/File/ExtendedFileUtility.php
@@ -230,7 +230,7 @@ class ExtendedFileUtility extends BasicFileUtility
             // Check if there were new folder names expected, but non given
             if ($this->fileCmdMap['newfolder'] ?? false) {
                 foreach ($this->fileCmdMap['newfolder'] as $key => $cmdArr) {
-                    if (empty($cmdArr['data'])) {
+                    if ((string)($cmdArr['data'] ?? '') === '') {
                         unset($this->fileCmdMap['newfolder'][$key]);
                     }
                 }