diff --git a/src/VisualizerCalls/SendMessage.cpp b/src/VisualizerCalls/SendMessage.cpp
index 068e9fe..5ac7364 100644
--- a/src/VisualizerCalls/SendMessage.cpp
+++ b/src/VisualizerCalls/SendMessage.cpp
@@ -4,6 +4,7 @@
 #include <iostream>
 #include <ctime>
 #include <chrono>
+#include <cstdarg>
 
 #include "SendMessage.h"
 #include "utils.h"