diff --git a/workflow/engine/classes/ActionsByEmailCoreClass.php b/workflow/engine/classes/ActionsByEmailCoreClass.php
index 21a4d33cc..e69d6cd22 100644
--- a/workflow/engine/classes/ActionsByEmailCoreClass.php
+++ b/workflow/engine/classes/ActionsByEmailCoreClass.php
@@ -529,7 +529,7 @@ class ActionsByEmailCoreClass extends PMPlugin
      */
     private function defineSubject($subjectField, array $caseData)
     {
-        $subject = G::replaceDataField($subjectField, $caseData);
+        $subject = G::replaceDataField($subjectField, $caseData, 'mysql', false);
         if (empty($subject)) {
             $subject = $this->getCasePropertiesKey('APP_TITLE');
         }