diff --git a/Outputs/Log.hpp b/Outputs/Log.hpp
index f7595206f..17a4a3377 100644
--- a/Outputs/Log.hpp
+++ b/Outputs/Log.hpp
@@ -10,6 +10,7 @@
 
 #include <cstdio>
 #include <cstdarg>
+#include <cstring>
 #include <string>
 
 namespace Log {