diff --git a/.gitmodules b/.gitmodules
index 2a97d495ec..09325b0cdd 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -833,3 +833,8 @@
 	url = ../parser.git
 	fetchRecurseSubmodules = on-demand
 	branch = .
+[submodule "mqtt5"]
+	path = libs/mqtt5
+	url = ../mqtt5.git
+	fetchRecurseSubmodules = on-demand
+	branch = .
diff --git a/libs/mqtt5 b/libs/mqtt5
new file mode 160000
index 0000000000..7d18f20e56
--- /dev/null
+++ b/libs/mqtt5
@@ -0,0 +1 @@
+Subproject commit 7d18f20e56f7acb8269c9fc989765c08972e7b77