diff --git a/Chinczyk188/Board.cpp b/Chinczyk188/Board.cpp
index 2c76473..0a15797 100644
--- a/Chinczyk188/Board.cpp
+++ b/Chinczyk188/Board.cpp
@@ -1,6 +1,7 @@
 #include "Board.hpp"
 #include <iostream>
 #include <string>
+#include <thread>
 
 void Board::initVariables() {