diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index 78729519775..006c80428f7 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -6446,7 +6446,7 @@ abstract class CommonObject
 				    jQuery(document).ready(function() {
 				    	function showOptions(child_list, parent_list)
 				    	{
-				    		var val = $("select[name=\"options_"+parent_list+"\"]").val();
+				    		var val = $("select[name=\""+parent_list+"\"]").val();
 				    		var parentVal = parent_list + ":" + val;
 							if(val > 0) {
 					    		$("select[name=\""+child_list+"\"] option[parent]").hide();