diff --git a/lib/Twig/ExistsLoaderInterface.php b/lib/Twig/ExistsLoaderInterface.php
new file mode 100644
index 000000000..01a522fe7
--- /dev/null
+++ b/lib/Twig/ExistsLoaderInterface.php
@@ -0,0 +1,24 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Adds an exists() method for loaders. Extends Twig_LoaderInterface for loaders
+ * can be compatible with Twig 1.x and 2.x.
+ *
+ * 1.x BC layer.
+ *
+ * @author Florin Patan <florinpatan@gmail.com>
+ *
+ * @deprecated since 1.12 (to be removed in 3.0)
+ */
+interface Twig_ExistsLoaderInterface extends Twig_LoaderInterface
+{
+}