diff --git a/htdocs/paypal/admin/paypal.php b/htdocs/paypal/admin/paypal.php
index c30bea39788..3bae01cfd80 100644
--- a/htdocs/paypal/admin/paypal.php
+++ b/htdocs/paypal/admin/paypal.php
@@ -125,26 +125,26 @@ print '<td>'.$langs->trans("Value").'</td>';
 print "</tr>\n";
 
 $var=!$var;
-print '<tr '.$bc[$var].'><td>';
+print '<tr '.$bc[$var].'><td class="fieldrequired">';
 print $langs->trans("PAYPAL_API_SANDBOX").'</td><td>';
 print $form->selectyesno("PAYPAL_API_SANDBOX",$conf->global->PAYPAL_API_SANDBOX,1);
 print '</td></tr>';
 
 $var=!$var;
-print '<tr '.$bc[$var].'><td>';
+print '<tr '.$bc[$var].'><td class="fieldrequired">';
 print $langs->trans("PAYPAL_API_USER").'</td><td>';
 print '<input size="32" type="text" name="PAYPAL_API_USER" value="'.$conf->global->PAYPAL_API_USER.'">';
 print ' &nbsp; '.$langs->trans("Example").': paypal_api1.mywebsite.com';
 print '</td></tr>';
 
 $var=!$var;
-print '<tr '.$bc[$var].'><td>';
+print '<tr '.$bc[$var].'><td class="fieldrequired">';
 print $langs->trans("PAYPAL_API_PASSWORD").'</td><td>';
 print '<input size="32" type="text" name="PAYPAL_API_PASSWORD" value="'.$conf->global->PAYPAL_API_PASSWORD.'">';
 print '</td></tr>';
 
 $var=!$var;
-print '<tr '.$bc[$var].'><td>';
+print '<tr '.$bc[$var].'><td class="fieldrequired">';
 print $langs->trans("PAYPAL_API_SIGNATURE").'</td><td>';
 print '<input size="64" type="text" name="PAYPAL_API_SIGNATURE" value="'.$conf->global->PAYPAL_API_SIGNATURE.'">';
 print '<br>'.$langs->trans("Example").': ASsqXEmw4KzmX-CPChWSVDNCNfd.A3YNR7uz-VncXXAERFDFDFDF';
@@ -157,7 +157,7 @@ print '<td>'.$langs->trans("Value").'</td>';
 print "</tr>\n";
 
 $var=!$var;
-print '<tr '.$bc[$var].'><td>';
+print '<tr '.$bc[$var].'><td class="fieldrequired">';
 print $langs->trans("PAYPAL_API_INTEGRAL_OR_PAYPALONLY").'</td><td>';
 print $form->selectarray("PAYPAL_API_INTEGRAL_OR_PAYPALONLY",array('integral'=>'Integral','paypalonly'=>'Paypal only'),$conf->global->PAYPAL_API_INTEGRAL_OR_PAYPALONLY);
 print '</td></tr>';
@@ -240,7 +240,7 @@ print '</div>';
 print '<br><br>';
 
 $token='';
-if (! empty($conf->global->PAYPAL_SECURITY_TOKEN)) $token='&securekey='.dol_hash($conf->global->PAYPAL_SECURITY_TOKEN, 2);
+if (! empty($conf->global->PAYPAL_SECURITY_TOKEN)) $token='&securekey='.$conf->global->PAYPAL_SECURITY_TOKEN;
 
 // Url list
 print '<u>'.$langs->trans("FollowingUrlAreAvailableToMakePayments").':</u><br>';