diff --git a/presentation/lookAndFeel/knowledgeTree/documentmanagement/addDocumentUI.inc b/presentation/lookAndFeel/knowledgeTree/documentmanagement/addDocumentUI.inc
index 5291ac8..968bf7d 100644
--- a/presentation/lookAndFeel/knowledgeTree/documentmanagement/addDocumentUI.inc
+++ b/presentation/lookAndFeel/knowledgeTree/documentmanagement/addDocumentUI.inc
@@ -10,7 +10,7 @@
 
 function getDocumentListForFolder($fFolderID) {
 	global $default;
-	$sQuery = "SELECT D.id AS id, D.folder_id AS folder_id, D.name AS name, COALESCE(CONCAT('$default->graphicsUrl/', MT.icon_path), '$default->graphicsUrl/star.gif') AS image_url " . 
+	$sQuery = "SELECT D.id AS id, D.folder_id AS folder_id, D.name AS name, COALESCE(CONCAT('$default->graphicsUrl/', MT.icon_path), '$default->graphicsUrl/unknown.gif') AS image_url " . 
 			"FROM $default->owl_documents_table AS D LEFT OUTER JOIN $default->owl_mime_table AS MT ON D.mime_id = MT.id " .
 			"WHERE folder_id = $fFolderID " .
 			"ORDER BY name ASC";
diff --git a/presentation/lookAndFeel/knowledgeTree/documentmanagement/documentUI.inc b/presentation/lookAndFeel/knowledgeTree/documentmanagement/documentUI.inc
index 04b3928..e83d236 100644
--- a/presentation/lookAndFeel/knowledgeTree/documentmanagement/documentUI.inc
+++ b/presentation/lookAndFeel/knowledgeTree/documentmanagement/documentUI.inc
@@ -22,7 +22,7 @@ function displayDocumentLink($oDocument, $bDisplayFullPath = false) {
     global $default;
     
     $sIconUrl = $oDocument->getMimeTypeIconUrl();
-    $sIconPath = ($sIconUrl ? generateImage($sIconUrl) : generateImage("$default->graphicsUrl/star.gif"));
+    $sIconPath = ($sIconUrl ? generateImage($sIconUrl) : generateImage("$default->graphicsUrl/unknown.gif"));
 
     $sLinkText = $oDocument->getName();
     if ($bDisplayFullPath) {