diff --git a/include/pdal/Metadata.hpp b/include/pdal/Metadata.hpp
index cb0b03f142..ccde6233f0 100644
--- a/include/pdal/Metadata.hpp
+++ b/include/pdal/Metadata.hpp
@@ -167,23 +167,23 @@ enum Type
 };
 
 
-typedef boost::variant<
-bool,
-float,
-double,
-boost::int8_t,
-boost::uint8_t,
-boost::int16_t,
-boost::uint16_t,
-boost::int32_t,
-boost::uint32_t,
-boost::int64_t,
-boost::uint64_t,
-boost::uuids::uuid,
-std::string,
-pdal::ByteArray,
-pdal::SpatialReference,
-pdal::Bounds<double> > Variant;
+typedef boost::variant< bool,
+                        float,
+                        double,
+                        boost::int8_t,
+                        boost::uint8_t,
+                        boost::int16_t,
+                        boost::uint16_t,
+                        boost::int32_t,
+                        boost::uint32_t,
+                        boost::int64_t,
+                        boost::uint64_t,
+                        boost::uuids::uuid,
+                        std::string,
+                        pdal::ByteArray,
+                        pdal::SpatialReference,
+                        pdal::Bounds<double>,
+                        boost::recursive_wrapper<Metadata> > Variant;