diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..f6a7910
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "freebsd-src"]
+	path = freebsd-src
+	url = https://github.com/freebsd/freebsd-src.git
diff --git a/freebsd-src b/freebsd-src
new file mode 160000
index 0000000..b74cdf1
--- /dev/null
+++ b/freebsd-src
@@ -0,0 +1 @@
+Subproject commit b74cdf1eceaecc9e3e533cd7f544e3eb297509c6