diff --git a/Library/StdAfx.h b/Library/StdAfx.h
index 48485c5b..5ac3b4d8 100644
--- a/Library/StdAfx.h
+++ b/Library/StdAfx.h
@@ -48,6 +48,7 @@
 #include <unordered_set>
 #include <list>
 #include <algorithm>
+#include <memory>
 #include <ctime>
 #include <cstdlib>
 #include <cstdio>