diff --git a/lam/lib/lamdaemon.inc b/lam/lib/lamdaemon.inc
index 3bf9db9b..320ea441 100644
--- a/lam/lib/lamdaemon.inc
+++ b/lam/lib/lamdaemon.inc
@@ -112,11 +112,11 @@ function lamdaemonSSH($commands, $server) {
 			return $return;
 		}
 		$entry = @ldap_get_entries($_SESSION['ldap']->server(), $sr);
-		$userName = $entry[0]['uid'][0];
-		if (!$userName) {
+		if (!isset($entry[0]['uid'][0])) {
 			$return = array("ERROR," . _("Your LAM admin user must be a valid Unix account to work with lamdaemon!") . ",");
 			return $return;
 		}
+		$userName = $entry[0]['uid'][0];
 		if (@ssh2_auth_password($handle, $userName, $credentials[1])) {
 			$shell = ssh2_exec($handle, "sudo " . $_SESSION['config']->get_scriptPath());
 			fwrite($shell, $commands);
diff --git a/lam/lib/modules/posixAccount.inc b/lam/lib/modules/posixAccount.inc
index b2113ae4..1521a198 100644
--- a/lam/lib/modules/posixAccount.inc
+++ b/lam/lib/modules/posixAccount.inc
@@ -612,7 +612,7 @@ class posixAccount extends baseModule {
 	 */
 	function preDeleteActions() {
 		$return = true;
-		if ($_POST['deletehomedir']) {
+		if (isset($_POST['deletehomedir'])) {
 			// get list of lamdaemon servers
 			$lamdaemonServers = explode(";", $_SESSION['config']->get_scriptServers());
 			for ($i = 0; $i < sizeof($lamdaemonServers); $i++) {