diff --git a/include/boost/fusion/adapted/adt/detail/adapt_base.hpp b/include/boost/fusion/adapted/adt/detail/adapt_base.hpp
index c1c78962..2b47e70e 100644
--- a/include/boost/fusion/adapted/adt/detail/adapt_base.hpp
+++ b/include/boost/fusion/adapted/adt/detail/adapt_base.hpp
@@ -48,6 +48,7 @@
     NAME_SEQ, ATTRIBUTE, ATTRIBUTE_TUPEL_SIZE)                                  \
                                                                                 \
     struct deduced_attr_type {                                                  \
+      static const BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ)& obj;        \
       const BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ)& obj;               \
       typedef BOOST_TYPEOF(                                                     \
           BOOST_FUSION_ADAPT_ADT_ATTRIBUTE_GETEXPR(                             \