diff --git a/lib/Alchemy/Phrasea/Setup/System/ProbeInterface.php b/lib/Alchemy/Phrasea/Setup/System/ProbeInterface.php
new file mode 100644
index 0000000000..125ffbb8fb
--- /dev/null
+++ b/lib/Alchemy/Phrasea/Setup/System/ProbeInterface.php
@@ -0,0 +1,16 @@
+<?php
+
+/*
+ * This file is part of Phraseanet
+ *
+ * (c) 2005-2012 Alchemy
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Alchemy\Phrasea\Setup\System;
+
+interface ProbeInterface
+{
+}