diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..8324ada
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,4 @@
+[submodule "3rdparty/WaifUPnP"]
+	path = 3rdparty/WaifUPnP
+	url = https://github.com/Monsterovich/WaifUPnP/
+	branch = lanemu-upnp
diff --git a/3rdparty/WaifUPnP b/3rdparty/WaifUPnP
new file mode 160000
index 0000000..13d6e14
--- /dev/null
+++ b/3rdparty/WaifUPnP
@@ -0,0 +1 @@
+Subproject commit 13d6e1485bcc9c323147072c13239d94b5333ae0