diff --git a/.gitmodules b/.gitmodules
index 11b1fb70..d39ee17e 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "vendor/plugins/rspec"]
 	path = vendor/plugins/rspec
 	url = git://github.com/dchelimsky/rspec.git
+[submodule "vendor/rails"]
+	path = vendor/rails
+	url = git://github.com/rails/rails.git
diff --git a/vendor/rails b/vendor/rails
new file mode 160000
index 00000000..6c1c16bf
--- /dev/null
+++ b/vendor/rails
@@ -0,0 +1 @@
+Subproject commit 6c1c16bfd9eb865dffa68c12c7df66d5a59a8714