diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000000..2111b7d6c9b
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "lib/luajit"]
+	path = lib/luajit
+	url = http://luajit.org/git/luajit-2.0.git
diff --git a/lib/luajit b/lib/luajit
new file mode 160000
index 00000000000..880ca300e8f
--- /dev/null
+++ b/lib/luajit
@@ -0,0 +1 @@
+Subproject commit 880ca300e8fb7b432b9d25ed377db2102e4cb63d