diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..c407f98
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "vendor/async-tftp-rs"]
+	path = vendor/async-tftp-rs
+	url = git@github.com:thequux/async-tftp-rs.git
diff --git a/vendor/async-tftp-rs b/vendor/async-tftp-rs
new file mode 160000
index 0000000..128f482
--- /dev/null
+++ b/vendor/async-tftp-rs
@@ -0,0 +1 @@
+Subproject commit 128f48226673c39cf7484bb20d0daf71b777c55e