diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..c55c8e5
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "ext/spec"]
+	path = ext/spec
+	url = http://github.com/mustache/spec.git
diff --git a/ext/spec b/ext/spec
new file mode 160000
index 0000000..6287192
--- /dev/null
+++ b/ext/spec
@@ -0,0 +1 @@
+Subproject commit 62871926ab5789ab6c55f5a1deda359ba5f7b2fa