diff --git a/htdocs/core/tpl/admin_extrafields_add.tpl.php b/htdocs/core/tpl/admin_extrafields_add.tpl.php
index 44cc7a78bc0..1ca0b29708c 100644
--- a/htdocs/core/tpl/admin_extrafields_add.tpl.php
+++ b/htdocs/core/tpl/admin_extrafields_add.tpl.php
@@ -47,8 +47,8 @@
     		else if (type == 'varchar') { size.val('255').removeAttr('disabled'); unique.removeAttr('disabled','disabled'); jQuery("#value_choice").hide(); }
     		else if (type == 'boolean') { size.val('').attr('disabled','disabled'); unique.attr('disabled','disabled'); jQuery("#value_choice").hide();}
     		else if (type == 'price') { size.val('').attr('disabled','disabled'); unique.attr('disabled','disabled'); jQuery("#value_choice").hide();}
-    		else if (type == 'select') { size.val('').attr('disabled','disabled'); unique.attr('disabled','disabled');  jQuery("#value_choice").show();}
-    		else if (type == 'sellist') { size.val('').attr('disabled','disabled'); unique.attr('disabled','disabled');  jQuery("#value_choice").show();}
+    		else if (type == 'select') { size.val('').attr('disabled','disabled'); unique.attr('disabled','disabled');  jQuery("#value_choice").show();jQuery("#helpselect").show();jQuery("#helpsellist").hide();}
+    		else if (type == 'sellist') { size.val('').attr('disabled','disabled'); unique.attr('disabled','disabled');  jQuery("#value_choice").show();jQuery("#helpselect").hide();jQuery("#helpsellist").show();}
     		else if (type == 'checkbox') { size.val('').attr('disabled','disabled'); unique.attr('disabled','disabled');  jQuery("#value_choice").show();}
     		else if (type == 'radio') { size.val('').attr('disabled','disabled'); unique.attr('disabled','disabled');  jQuery("#value_choice").show();}
     		else if (type == 'separate') { size.val('').attr('disabled','disabled'); unique.attr('disabled','disabled');  required.val('').attr('disabled','disabled'); default_value.val('').attr('disabled','disabled'); jQuery("#value_choice").hide();}
@@ -87,7 +87,8 @@
 <table class="nobordernopadding">
 <tr><td width="30%">
 	<textarea name="param" id="param"><?php echo GETPOST('param'); ?></textarea>
-</td><td><?php print $form->textwithpicto('', $langs->trans("ExtrafieldParamHelp".$type),1,0)?></td></tr>
+</td><td id="helpselect"><?php print $form->textwithpicto('', $langs->trans("ExtrafieldParamHelpselect"),1,0)?></td>
+<td id="helpsellist"><?php print $form->textwithpicto('', $langs->trans("ExtrafieldParamHelpsellist"),1,0)?></td></tr>
 </table>
 </td>
 
diff --git a/htdocs/core/tpl/admin_extrafields_edit.tpl.php b/htdocs/core/tpl/admin_extrafields_edit.tpl.php
index d3b06545fa2..18ea7623d66 100644
--- a/htdocs/core/tpl/admin_extrafields_edit.tpl.php
+++ b/htdocs/core/tpl/admin_extrafields_edit.tpl.php
@@ -66,6 +66,8 @@ if((($type == 'select') || ($type == 'checkbox') ||(($type == 'radio'))) && is_a
 			$param_chain .= $key.', '.$value."\n";
 		}
 	}
+}elseif ($type== 'sellist') {
+	$param_chain = array_keys($param['options'])[0];
 }
 ?>
 <!-- Position -->