diff --git a/src/zm_monitor.h b/src/zm_monitor.h
index 8d6bbd95e..5f0b7dc74 100644
--- a/src/zm_monitor.h
+++ b/src/zm_monitor.h
@@ -27,6 +27,7 @@
 #include "zm_event.h"
 #include "zm_fifo.h"
 #include "zm_image.h"
+#include "zm_mqtt.h"
 #include "zm_packet.h"
 #include "zm_packetqueue.h"
 #include "zm_utils.h"
@@ -400,6 +401,8 @@ protected:
 
   std::vector<Zone> zones;
 
+  std::unique_ptr<MQTT> mqtt;
+
   const unsigned char  *privacy_bitmask;
 
   int      n_linked_monitors;