diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..bffc433
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "lib/mqtt++"]
+	path = lib/mqtt++
+	url = https://Julian@git.mueller.haus/mqtt++
diff --git a/lib/mqtt++ b/lib/mqtt++
new file mode 160000
index 0000000..84824b4
--- /dev/null
+++ b/lib/mqtt++
@@ -0,0 +1 @@
+Subproject commit 84824b468fc39174026863b59fa75de113715b47