diff --git a/htdocs/datapolicy/class/datapolicy.class.php b/htdocs/datapolicy/class/datapolicy.class.php
index ff9abcf5dce..14a8bc40ca8 100644
--- a/htdocs/datapolicy/class/datapolicy.class.php
+++ b/htdocs/datapolicy/class/datapolicy.class.php
@@ -268,11 +268,11 @@ class DataPolicy
         {
             if ($sendtocc)
             {
-                 $actionmsg .= dol_concatdesc($actionmsg, $langs->transnoentities('Bcc').": ".$sendtocc);
+                 $actionmsg = dol_concatdesc($actionmsg, $langs->transnoentities('Bcc').": ".$sendtocc);
             }
-            $actionmsg .= dol_concatdesc($actionmsg, $langs->transnoentities('MailTopic').": ".$subject);
-            $actionmsg .= dol_concatdesc($actionmsg, $langs->transnoentities('TextUsedInTheMessageBody').":");
-            $actionmsg .= dol_concatdesc($actionmsg, $message);
+            $actionmsg = dol_concatdesc($actionmsg, $langs->transnoentities('MailTopic').": ".$subject);
+            $actionmsg = dol_concatdesc($actionmsg, $langs->transnoentities('TextUsedInTheMessageBody') . ":");
+            $actionmsg = dol_concatdesc($actionmsg, $message);
         }
 
         // Send mail
@@ -342,11 +342,11 @@ class DataPolicy
         $actionmsg = $langs->transnoentities('MailSentBy').' '.$from.' '.$langs->transnoentities('To').' '.$sendto;
         if ($message) {
             if ($sendtocc) {
-                $actionmsg .= dol_concatdesc($actionmsg, $langs->transnoentities('Bcc').": ".$sendtocc);
+                $actionmsg = dol_concatdesc($actionmsg, $langs->transnoentities('Bcc').": ".$sendtocc);
             }
-            $actionmsg .= dol_concatdesc($actionmsg, $langs->transnoentities('MailTopic').": ".$subject);
-            $actionmsg .= dol_concatdesc($actionmsg, $langs->transnoentities('TextUsedInTheMessageBody').":");
-            $actionmsg .= dol_concatdesc($actionmsg, $message);
+            $actionmsg = dol_concatdesc($actionmsg, $langs->transnoentities('MailTopic').": ".$subject);
+            $actionmsg = dol_concatdesc($actionmsg, $langs->transnoentities('TextUsedInTheMessageBody') . ":");
+            $actionmsg = dol_concatdesc($actionmsg, $message);
         }