diff --git a/workflow/engine/classes/class.spool.php b/workflow/engine/classes/class.spool.php
index d5cc28a6d..bf67b5cec 100755
--- a/workflow/engine/classes/class.spool.php
+++ b/workflow/engine/classes/class.spool.php
@@ -138,7 +138,14 @@ class spoolRun
      */
     public function create ($aData)
     {
-        $attachment = (is_array($aData['app_msg_attach'])) ? $aData['app_msg_attach'] : unserialize($aData['app_msg_attach']);
+        if (is_array($aData['app_msg_attach'])) {
+            $attachment = $aData['app_msg_attach'];
+        } else {
+            $attachment = @unserialize($aData['app_msg_attach']);
+            if ($attachment === false) {
+                $attachment = explode(',', $aData['app_msg_attach']);
+            }
+        }
         $aData['app_msg_attach'] = serialize($attachment);
         $aData['app_msg_show_message'] = (isset($aData['app_msg_show_message'])) ? $aData['app_msg_show_message'] : 1;
         $sUID = $this->db_insert( $aData );
@@ -182,7 +189,7 @@ class spoolRun
         $this->fileData['cc'] = $sCC;
         $this->fileData['bcc'] = $sBCC;
         $this->fileData['template'] = $sTemplate;
-        $this->fileData['attachments'] = is_string($aAttachment) ? $aAttachment : (is_array($aAttachment) ? $aAttachment : (($aAttachment != '') ? explode(',', $aAttachment) : array()));
+        $this->fileData['attachments'] = $aAttachment;
         $this->fileData['envelope_to'] = array ();
         $this->fileData["contentTypeIsHtml"] = $bContentTypeIsHtml;
 
@@ -441,10 +448,9 @@ class spoolRun
 
                     $oPHPMailer->Body = $msBody;
 
-                    if (is_array($this->fileData['attachments'])) {
+                    $attachment = @unserialize($this->fileData['attachments']);
+                    if ($attachment === false) {
                         $attachment = $this->fileData['attachments'];
-                    } else {
-                        $attachment = unserialize($this->fileData['attachments']);
                     }
                     if (is_array($attachment)) {
                         foreach ($attachment as $key => $fileAttach) {