diff --git a/include/fc/io/raw.hpp b/include/fc/io/raw.hpp
index 5b3bfc6..27b376f 100644
--- a/include/fc/io/raw.hpp
+++ b/include/fc/io/raw.hpp
@@ -151,6 +151,13 @@ namespace fc {
        s.read( (char*)&v.data[0], N );
     } FC_RETHROW_EXCEPTIONS( warn, "fc::array<unsigned char,${length}>", ("length",N) ) }
 
+    template<typename Stream, typename T>
+    inline void pack( Stream& s, const std::shared_ptr<T>& v, uint32_t _max_depth )
+    {
+       FC_ASSERT( _max_depth > 0 );
+       fc::raw::pack( s, *v, _max_depth - 1 );
+    }
+
     template<typename Stream, typename T>
     inline void unpack( Stream& s, std::shared_ptr<T>& v, uint32_t _max_depth )
     { try {