diff --git a/cube/User/Src/mqttTest.c b/cube/User/Src/mqttTest.c
index 2ba936c..db64a60 100644
--- a/cube/User/Src/mqttTest.c
+++ b/cube/User/Src/mqttTest.c
@@ -72,6 +72,13 @@ void mqttTestHandler(void *handle) {
             break;
 
         case 4:
+            coloredMsg(LOG_YELLOW, "mth, subscribe something");
+            res = subscribe(&mqttClient, "wiznet/helloback", MQTTQOS0);
+            coloredMsg(LOG_YELLOW, "mth, subscribe returned %d", res);
+            state = 5;
+            break;
+
+        case 5:
             coloredMsg(LOG_YELLOW, "mth, waiting");
             break;