diff --git a/htdocs/core/class/html.formother.class.php b/htdocs/core/class/html.formother.class.php
index d6cf08594bb..4f0439d7b3c 100644
--- a/htdocs/core/class/html.formother.class.php
+++ b/htdocs/core/class/html.formother.class.php
@@ -356,9 +356,18 @@ class FormOther
         global $conf,$langs;
         $langs->load('users');
 
+        $out = '';
+        $nodatarole = '';
+        // Enhance with select2
+        if ($conf->use_javascript_ajax)
+        {
+            include_once DOL_DOCUMENT_ROOT . '/core/lib/ajax.lib.php';
+            $out.= ajax_combobox($htmlname);
+            $nodatarole=' data-role="none"';
+        }
         // Select each sales and print them in a select input
-        $moreforfilter ='<select class="flat" name="'.$htmlname.'">';
-        $moreforfilter.='<option value="">&nbsp;</option>';
+        $out.='<select class="flat" id="'.$htmlname.'" name="'.$htmlname.'"'.$nodatarole.'>';
+        $out.='<option value="">&nbsp;</option>';
 
         // Get list of users allowed to be viewed
         $sql_usr = "SELECT u.rowid, u.lastname, u.firstname, u.statut, u.login";
@@ -383,34 +392,35 @@ class FormOther
         {
             while ($obj_usr = $this->db->fetch_object($resql_usr))
             {
-                $moreforfilter.='<option value="'.$obj_usr->rowid.'"';
 
-                if ($obj_usr->rowid == $selected) $moreforfilter.=' selected="selected"';
+                $out.='<option value="'.$obj_usr->rowid.'"';
 
-                $moreforfilter.='>';
-                $moreforfilter.=dolGetFirstLastname($obj_usr->firstname,$obj_usr->lastname);
+                if ($obj_usr->rowid == $selected) $out.=' selected="selected"';
+
+                $out.='>';
+                $out.=dolGetFirstLastname($obj_usr->firstname,$obj_usr->lastname);
                 // Complete name with more info
                 $moreinfo=0;
                 if (! empty($conf->global->MAIN_SHOW_LOGIN))
                 {
-                	$moreforfilter.=($moreinfo?' - ':' (').$obj_usr->login;
-                	$moreinfo++;
+                    $out.=($moreinfo?' - ':' (').$obj_usr->login;
+                    $moreinfo++;
                 }
                 if ($showstatus >= 0)
                 {
 					if ($obj_usr->statut == 1 && $showstatus == 1)
 					{
-						$moreforfilter.=($moreinfo?' - ':' (').$langs->trans('Enabled');
+						$out.=($moreinfo?' - ':' (').$langs->trans('Enabled');
 	                	$moreinfo++;
 					}
 					if ($obj_usr->statut == 0)
 					{
-						$moreforfilter.=($moreinfo?' - ':' (').$langs->trans('Disabled');
+						$out.=($moreinfo?' - ':' (').$langs->trans('Disabled');
                 		$moreinfo++;
 					}
 				}
-				$moreforfilter.=($moreinfo?')':'');
-                $moreforfilter.='</option>';
+				$out.=($moreinfo?')':'');
+                $out.='</option>';
             }
             $this->db->free($resql_usr);
         }
@@ -418,9 +428,9 @@ class FormOther
         {
             dol_print_error($this->db);
         }
-        $moreforfilter.='</select>';
+        $out.='</select>';
 
-        return $moreforfilter;
+        return $out;
     }
 
     /**