diff --git a/contrib/epee/include/serialization/keyvalue_serialization_overloads.h b/contrib/epee/include/serialization/keyvalue_serialization_overloads.h
index 7087136cc..09087f785 100644
--- a/contrib/epee/include/serialization/keyvalue_serialization_overloads.h
+++ b/contrib/epee/include/serialization/keyvalue_serialization_overloads.h
@@ -156,7 +156,7 @@ namespace epee
         typename stl_container::value_type* pelem =  (typename stl_container::value_type*)buff.data();
         CHECK_AND_ASSERT_MES(!(loaded_size%sizeof(typename stl_container::value_type)), 
           false, 
-          "size in blob " << loaded_size << " not have not zero modulo for sizeof(value_type) = " << sizeof(typename stl_container::value_type));
+          "size in blob " << loaded_size << " not have not zero modulo for sizeof(value_type) = " << sizeof(typename stl_container::value_type) << ", type " << typeid(typename stl_container::value_type).name());
         size_t count = (loaded_size/sizeof(typename stl_container::value_type));
         for(size_t i = 0; i < count; i++)
           container.insert(container.end(), *(pelem++));
diff --git a/src/debug_utilities/object_sizes.cpp b/src/debug_utilities/object_sizes.cpp
index a3d037a59..ab8839636 100644
--- a/src/debug_utilities/object_sizes.cpp
+++ b/src/debug_utilities/object_sizes.cpp
@@ -94,6 +94,11 @@ int main(int argc, char* argv[])
   SL(nodetool::node_server<cryptonote::t_cryptonote_protocol_handler<cryptonote::core>>);
   SL(nodetool::p2p_connection_context_t<cryptonote::t_cryptonote_protocol_handler<cryptonote::core>::connection_context>);
   SL(nodetool::network_address_old);
+  SL(nodetool::peerlist_entry_base<nodetool::network_address_old>);
+
+  SL(nodetool::network_config);
+  SL(nodetool::basic_node_data);
+  SL(cryptonote::CORE_SYNC_DATA);
 
   SL(tools::wallet2::transfer_details);
   SL(tools::wallet2::payment_details);