diff --git a/libraries/chain/db_block.cpp b/libraries/chain/db_block.cpp
index 45d75fa5..5174e018 100644
--- a/libraries/chain/db_block.cpp
+++ b/libraries/chain/db_block.cpp
@@ -640,8 +640,8 @@ void database::_apply_block( const signed_block& next_block )
    clear_expired_transactions();
    clear_expired_proposals();
    clear_expired_orders();
-   update_expired_feeds();
-   update_core_exchange_rates();
+   update_expired_feeds();       // this will update expired feeds and some core exchange rates
+   update_core_exchange_rates(); // this will update remaining core exchange rates
    update_withdraw_permissions();
    update_tournaments();
    update_betting_markets(next_block.timestamp);