diff --git a/test/sequence/identity_view.cpp b/test/sequence/identity_view.cpp
index 0ad33277..1f8c3de2 100644
--- a/test/sequence/identity_view.cpp
+++ b/test/sequence/identity_view.cpp
@@ -8,6 +8,7 @@
 #include <boost/fusion/container/vector/vector.hpp>
 #include <boost/fusion/container/map/map.hpp>
 #include <boost/fusion/container/generation/make_map.hpp>
+#include <boost/fusion/algorithm/auxiliary/copy.hpp>
 #include <boost/fusion/adapted/mpl.hpp>
 #include <boost/fusion/sequence/io/out.hpp>
 #include <boost/fusion/container/generation/make_vector.hpp>