diff --git a/htdocs/core/tpl/admin_extrafields_view.tpl.php b/htdocs/core/tpl/admin_extrafields_view.tpl.php
index c5618b07297..a3292773d4d 100644
--- a/htdocs/core/tpl/admin_extrafields_view.tpl.php
+++ b/htdocs/core/tpl/admin_extrafields_view.tpl.php
@@ -60,7 +60,7 @@ if (! empty($conf->global->MAIN_CAN_HIDE_EXTRAFIELDS)) print '<td align="center"
 print '<td width="80">&nbsp;</td>';
 print "</tr>\n";
 
-if (!empty($extrafields->attribute_type))
+if (is_array($extrafields->attribute_type)) && count($extrafields->attribute_type))
 {
     foreach($extrafields->attribute_type as $key => $value)
     {