1 files changed, 7 insertions, 0 deletions
diff --git a/odb/relational/header.hxx b/odb/relational/header.hxx
index a331b3f..53ff93a 100644
--- a/odb/relational/header.hxx
+++ b/odb/relational/header.hxx
@@ -88,6 +88,11 @@ namespace relational
       }
 
       virtual void
+      image_extra (type&)
+      {
+      }
+
+      virtual void
       traverse (type& c)
       {
         os << "struct image_type";
@@ -106,6 +111,8 @@ namespace relational
         if (!composite (c))
           os << "std::size_t version;";
 
+        image_extra (c);
+
         os << "};";
       }