diff --git a/classes/modules/typeModule.php b/classes/modules/typeModule.php
index 7420827e5082afb6571135ab6cac12a51fb2606f..83bff87a78ddd08dff457838b1b38faa4dddeb67 100644
--- a/classes/modules/typeModule.php
+++ b/classes/modules/typeModule.php
@@ -126,8 +126,8 @@ class TypeModule extends abstractModule{
   	//$typesAndValues = array('rdfs:Resource' => -1);
   	//$typesAndValues = array('rdfs__Resource' => -1);
   	//$typesAndValues = array('bibo:Document' => -1);
-    if (!empty($conf['typesAndValues'])){
-	$typesAndValues = $conf['typeAndValues'];
+    if (isset(conf['typesAndValues'])){
+	$typesAndValues = conf['typesAndValues'];
     }
     else{
         $typesAndValues = array('bibo__Document' => -1);