diff --git a/core/Command/Upgrade.php b/core/Command/Upgrade.php
index caf92492d9069132f17824a37799986fbbfe03e1..77d67534c6a1fb553fc5aa80a1d2907eefba0405 100644
--- a/core/Command/Upgrade.php
+++ b/core/Command/Upgrade.php
@@ -47,7 +47,7 @@ class Upgrade extends Command {
 	const ERROR_SUCCESS = 0;
 	const ERROR_NOT_INSTALLED = 1;
 	const ERROR_MAINTENANCE_MODE = 2;
-	const ERROR_UP_TO_DATE = 3;
+	const ERROR_UP_TO_DATE = 0;
 	const ERROR_INVALID_ARGUMENTS = 4;
 	const ERROR_FAILURE = 5;