diff --git a/inc/fields/dropdownfield.class.php b/inc/fields/dropdownfield.class.php
index 34e243e84..fa384e397 100644
--- a/inc/fields/dropdownfield.class.php
+++ b/inc/fields/dropdownfield.class.php
@@ -172,8 +172,23 @@ public function displayField($canEdit = true) {
             if (isset($emptyItem->fields['otherserial'])) {
                $dparams['displaywith'][] = 'otherserial';
             }
-
-            $itemtype::dropdown($dparams);
+            if (count($dparams['displaywith']) > 0) {
+               $dparams['itemtype'] = $itemtype;
+               $dparams['table'] = $itemtype::getTable();
+               $dparams['multiple'] = false;
+               $dparams['valuename'] = Dropdown::EMPTY_VALUE;
+               if ($dparams['value'] != 0) {
+                  $dparams['valuename'] = $dparams['value'];
+               }
+               echo Html::jsAjaxDropdown(
+                  $fieldName,
+                  $domId,
+                  $CFG_GLPI['root_doc']."/ajax/getDropdownFindNum.php",
+                  $dparams
+               );
+            } else {
+               $itemtype::dropdown($dparams);
+            }
          }
          echo PHP_EOL;
          echo Html::scriptBlock("$(function() {