diff --git a/SeedDMS_Core/Core/inc.ClassDocument.php b/SeedDMS_Core/Core/inc.ClassDocument.php
index bfe9ace50..7b7b69095 100644
--- a/SeedDMS_Core/Core/inc.ClassDocument.php
+++ b/SeedDMS_Core/Core/inc.ClassDocument.php
@@ -3994,7 +3994,7 @@ class SeedDMS_Core_DocumentContent extends SeedDMS_Core_Object { /* {{{ */
 				"VALUES ('". $this->_document->getID() ."', '". $this->_version ."', '1', '". $groupID ."')";
 			$res = $db->getResult($queryStr);
 			if (is_bool($res) && !$res) {
-				return -1;
+				return false;
 			}
 			$reviewID = $db->getInsertID('tblDocumentReviewers', 'reviewID');
 		}