diff --git a/libraries/chain/db_init.cpp b/libraries/chain/db_init.cpp
index 7dc986a4b..72841afe0 100644
--- a/libraries/chain/db_init.cpp
+++ b/libraries/chain/db_init.cpp
@@ -263,7 +263,7 @@ void database::initialize_indexes()
    acnt_index->add_secondary_index<account_referrer_index>();
 
    add_index< primary_index<committee_member_index, 8> >(); // 256 members per chunk
-   add_index< primary_index<son_index, 8> >(); // 256 sons per chunk
+   add_index< primary_index<son_index> >();
    add_index< primary_index<witness_index, 10> >(); // 1024 witnesses per chunk
    add_index< primary_index<limit_order_index > >();
    add_index< primary_index<call_order_index > >();
diff --git a/libraries/db/include/graphene/db/index.hpp b/libraries/db/include/graphene/db/index.hpp
index e8d4fa110..1bc593f42 100644
--- a/libraries/db/include/graphene/db/index.hpp
+++ b/libraries/db/include/graphene/db/index.hpp
@@ -402,15 +402,6 @@ namespace graphene { namespace db {
             DerivedIndex::remove(obj);
          }
 
-         virtual const object& insert( object&& obj )override
-         {
-             const auto& res = DerivedIndex::insert(std::move(obj));
-             for( const auto& item : _sindex )
-                item->object_inserted( res );
-             on_add(res);
-             return res;
-         }
-
          virtual void modify( const object& obj, const std::function<void(object&)>& m )override
          {
             save_undo( obj );