1 files changed, 1 insertions, 0 deletions
diff --git a/mmss/types.hpp b/mmss/types.hpp
index 54a8474..b649849 100644
--- a/mmss/types.hpp
+++ b/mmss/types.hpp
@@ -56,6 +56,7 @@ private:
 class context_t;
 class config_t;
 class iface_t;
+class monitor_t;
 class network_t;
 class node_t;
 class now_t;