diff --git a/source/precompiled/precompiled.h b/source/precompiled/precompiled.h
index 9e30b5d30285..9e205bd85355 100644
--- a/source/precompiled/precompiled.h
+++ b/source/precompiled/precompiled.h
@@ -4,6 +4,7 @@
 #include <chrono>
 #include <condition_variable>
 #include <fstream>
+#include <iostream>
 #include <list>
 #include <map>
 #include <memory>