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-rw-r--r--boost/fusion/algorithm/iteration/fold.hpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/boost/fusion/algorithm/iteration/fold.hpp b/boost/fusion/algorithm/iteration/fold.hpp
index a83b33b15a..a2a0146ab4 100644
--- a/boost/fusion/algorithm/iteration/fold.hpp
+++ b/boost/fusion/algorithm/iteration/fold.hpp
@@ -10,6 +10,7 @@
#define BOOST_FUSION_ALGORITHM_ITERATION_FOLD_HPP
#include <boost/fusion/support/config.hpp>
+#include <boost/fusion/support/detail/result_of.hpp>
#include <boost/fusion/algorithm/iteration/fold_fwd.hpp>
#include <boost/config.hpp>
#include <boost/fusion/sequence/intrinsic/begin.hpp>