diff --git a/include/xtypes/Assert.hpp b/include/xtypes/Assert.hpp
index da7c1b8..695277d 100644
--- a/include/xtypes/Assert.hpp
+++ b/include/xtypes/Assert.hpp
@@ -20,6 +20,7 @@
 
 #include <iostream>
 #include <sstream>
+#include <utility>
 
 #if !defined(XTYPES_EXCEPTIONS)
 #if !defined(NDEBUG)