diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index c3a54126..4a6a6ccc 100644
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -277,7 +277,7 @@ my $confdesc = {
 	optional => 1,
 	type => 'string',
 	description => "Lock/unlock the VM.",
-	enum => [qw(migrate backup snapshot rollback clone)],
+	enum => [qw(backup clone create migrate rollback snapshot snapshot-delete)],
     },
     cpulimit => {
 	optional => 1,