diff --git a/.gitmodules b/.gitmodules
index e69de29bb2..ff0eb5ea5e 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "js/spidermonkey"]
+	path = js/spidermonkey
+	url = git://github.com/funkaster/spidermonkey.git
diff --git a/js/spidermonkey b/js/spidermonkey
new file mode 160000
index 0000000000..cfa9afe5c4
--- /dev/null
+++ b/js/spidermonkey
@@ -0,0 +1 @@
+Subproject commit cfa9afe5c44af3461846f15d448adf25396b059d