diff --git a/SeedDMS_Core/Core/inc.ClassUser.php b/SeedDMS_Core/Core/inc.ClassUser.php
index e19a3fd30..91936f072 100644
--- a/SeedDMS_Core/Core/inc.ClassUser.php
+++ b/SeedDMS_Core/Core/inc.ClassUser.php
@@ -292,6 +292,10 @@ class SeedDMS_Core_User { /* {{{ */
 	 * @return bool
 	 */
 	function setLogin($newLogin) { /* {{{ */
+		$newLogin = trim($newLogin);
+		if(!$newLogin)
+			return false;
+
 		$db = $this->_dms->getDB();
 
 		$queryStr = "UPDATE `tblUsers` SET `login` =".$db->qstr($newLogin)." WHERE `id` = " . $this->_id;