diff --git a/.gitmodules b/.gitmodules
index 2556fa1..2bbd452 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -8,3 +8,6 @@
 [submodule "cube/libmbus"]
 	path = cube/libmbus
 	url = ../libmbus
+[submodule "cube/pubsub"]
+	path = cube/pubsub
+	url = ../Pubsubclient
diff --git a/cube/pubsub b/cube/pubsub
new file mode 160000
index 0000000..2d228f2
--- /dev/null
+++ b/cube/pubsub
@@ -0,0 +1 @@
+Subproject commit 2d228f2f862a95846c65a8518c79f48dfc8f188c