diff --git a/SeedDMS_Core/Core/inc.ClassDMS.php b/SeedDMS_Core/Core/inc.ClassDMS.php
index c0affa302..b2ada7676 100644
--- a/SeedDMS_Core/Core/inc.ClassDMS.php
+++ b/SeedDMS_Core/Core/inc.ClassDMS.php
@@ -3957,7 +3957,7 @@ class SeedDMS_Core_DMS {
 	 * @return bool|SeedDMS_Core_Document[]
 	 */
 	function getWrongFiletypeDocumentContent() { /* {{{ */
-		$queryStr = "SELECT * FROM `tblDocumentContent` WHERE `mimeType` in ('application/pdf', 'image/png', 'image/gif', 'image/jpg')";
+		$queryStr = "SELECT * FROM `tblDocumentContent` WHERE `mimeType` in ('application/zip', 'application/pdf', 'image/png', 'image/gif', 'image/jpg', 'audio/mp3', 'text/rtf')";
 		$resArr = $this->db->getResultArray($queryStr);
 		if ($resArr === false)
 			return false;
@@ -3967,10 +3967,13 @@ class SeedDMS_Core_DMS {
 		foreach($resArr as $row) {
 			$expect = '';
 			switch($row['mimeType']) {
+			case "application/zip":
 			case "application/pdf":
 			case "image/png":
 			case "image/gif":
 			case "image/jpg":
+			case "audio/mp3":
+			case "text/rtf":
 				$expect = substr($row['mimeType'], -3, 3);
 				break;
 			}