diff --git a/VTIL-Common/util/copy_on_write.hpp b/VTIL-Common/util/copy_on_write.hpp
index 447fdb6..1d2a8a3 100644
--- a/VTIL-Common/util/copy_on_write.hpp
+++ b/VTIL-Common/util/copy_on_write.hpp
@@ -30,6 +30,7 @@
 #include <functional>
 #include <type_traits>
 #include <atomic>
+#include <utility>
 #include "../io/asserts.hpp"
 #include "object_pool.hpp"
 #include "../util/intrinsics.hpp"
@@ -401,4 +402,4 @@ namespace vtil
 		ret.temporary = true;
 		return ret;
 	}
-};
\ No newline at end of file
+};