diff --git a/.gitmodules b/.gitmodules
index 3d9c349027..b4186efd14 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -66,3 +66,6 @@
 [submodule "www/include/vendor/qunit"]
 	path = www/include/vendor/qunit
 	url = git://github.com/jquery/qunit.git
+[submodule "lib/vendor/doctrine2-beberlei"]
+	path = lib/vendor/doctrine2-beberlei
+	url = git://github.com/beberlei/DoctrineExtensions.git
diff --git a/lib/vendor/doctrine2-beberlei b/lib/vendor/doctrine2-beberlei
new file mode 160000
index 0000000000..2ec3f66cbe
--- /dev/null
+++ b/lib/vendor/doctrine2-beberlei
@@ -0,0 +1 @@
+Subproject commit 2ec3f66cbe2d443f9b0db67e7cff755f9ac6ffb7