diff --git a/plugins/ktcore/folder/addDocument.php b/plugins/ktcore/folder/addDocument.php
index 70264b5..5c064e6 100644
--- a/plugins/ktcore/folder/addDocument.php
+++ b/plugins/ktcore/folder/addDocument.php
@@ -7,6 +7,8 @@ require_once(KT_LIB_DIR . "/widgets/FieldsetDisplayRegistry.inc.php");
 require_once(KT_LIB_DIR . "/foldermanagement/folderutil.inc.php");
 require_once(KT_LIB_DIR . "/documentmanagement/observers.inc.php");
 
+require_once(KT_LIB_DIR . "/documentmanagement/documentutil.inc.php");
+
 class KTFolderAddDocumentAction extends KTFolderAction {
     var $sDisplayName = 'Add Document';
     var $sName = 'ktcore.actions.folder.addDocument';
diff --git a/presentation/lookAndFeel/knowledgeTree/documentmanagement/getTypeMetadataFields.php b/presentation/lookAndFeel/knowledgeTree/documentmanagement/getTypeMetadataFields.php
index 18abba5..44ebdac 100644
--- a/presentation/lookAndFeel/knowledgeTree/documentmanagement/getTypeMetadataFields.php
+++ b/presentation/lookAndFeel/knowledgeTree/documentmanagement/getTypeMetadataFields.php
@@ -6,6 +6,8 @@ require_once(KT_LIB_DIR . '/dispatcher.inc.php');
 require_once(KT_LIB_DIR . '/templating/templating.inc.php');
 require_once(KT_LIB_DIR . '/metadata/fieldset.inc.php');
 
+require_once(KT_LIB_DIR . '/widgets/fieldsetDisplay.inc.php');
+
 class KTSimplePage {
     function requireJSResource() {
     }