diff --git a/src/util/HandlersList.hpp b/src/util/HandlersList.hpp
index 5af5250d..737fdf36 100644
--- a/src/util/HandlersList.hpp
+++ b/src/util/HandlersList.hpp
@@ -1,7 +1,9 @@
 #pragma once
 
 #include <mutex>
-#include <iostream>
+#include <vector>
+#include <algorithm>
+#include <unordered_map>
 
 #include "typedefs.hpp"
 #include "delegates.hpp"