diff --git a/public/include/classes/worker.class.php b/public/include/classes/worker.class.php
index f8a8ce31..19c5558b 100644
--- a/public/include/classes/worker.class.php
+++ b/public/include/classes/worker.class.php
@@ -236,7 +236,7 @@ class Worker extends Base {
       $this->setErrorMessage($this->getErrorMsg('E0058'));
       return false;
     }
-    $validName = (bool) preg_match("/^[0-9a-zA-Z_\-]*$/", $wData[1]);
+    $validName = (bool) preg_match("/^[0-9a-zA-Z_\-]*$/", $workerName);
     if ($validName === false) {
       $this->setErrorMessage($this->getErrorMsg('E0072'));
       return false;