diff --git a/libraries/chain/asset_evaluator.cpp b/libraries/chain/asset_evaluator.cpp
index b5239b7c..33476b79 100644
--- a/libraries/chain/asset_evaluator.cpp
+++ b/libraries/chain/asset_evaluator.cpp
@@ -502,6 +502,20 @@ void_result asset_publish_feeds_evaluator::do_evaluate(const asset_publish_feed_
    FC_ASSERT( !bitasset.has_settlement(), "No further feeds may be published after a settlement event" );
 
    FC_ASSERT( o.feed.settlement_price.quote.asset_id == bitasset.options.short_backing_asset );
+   if( d.head_block_time() > HARDFORK_480_TIME )
+   {
+      if( !o.feed.core_exchange_rate.is_null() )
+      {
+         FC_ASSERT( o.feed.core_exchange_rate.quote.asset_id == asset_id_type() );
+      }
+   }
+   else
+   {
+      if( (!o.feed.settlement_price.is_null()) && (!o.feed.core_exchange_rate.is_null()) )
+      {
+         FC_ASSERT( o.feed.settlement_price.quote.asset_id == o.feed.core_exchange_rate.quote.asset_id );
+      }
+   }
 
    //Verify that the publisher is authoritative to publish a feed
    if( base.options.flags & witness_fed_asset )
diff --git a/libraries/chain/include/graphene/chain/hardfork.hpp b/libraries/chain/include/graphene/chain/hardfork.hpp
index 4095dd00..94c678b2 100644
--- a/libraries/chain/include/graphene/chain/hardfork.hpp
+++ b/libraries/chain/include/graphene/chain/hardfork.hpp
@@ -38,3 +38,6 @@
 
 // #453 Hardfork to retroactively correct referral percentages
 #define HARDFORK_453_TIME (fc::time_point_sec( 1450288800 ))
+
+// #480 Fix non-CORE MIA core_exchange_rate check
+#define HARDFORK_480_TIME (fc::time_point_sec( 1450378800 ))
diff --git a/libraries/chain/protocol/asset_ops.cpp b/libraries/chain/protocol/asset_ops.cpp
index c4cd433b..0a96163b 100644
--- a/libraries/chain/protocol/asset_ops.cpp
+++ b/libraries/chain/protocol/asset_ops.cpp
@@ -139,7 +139,6 @@ void asset_publish_feed_operation::validate()const
    if( (!feed.settlement_price.is_null()) && (!feed.core_exchange_rate.is_null()) )
    {
       FC_ASSERT( feed.settlement_price.base.asset_id == feed.core_exchange_rate.base.asset_id );
-      FC_ASSERT( feed.settlement_price.quote.asset_id == feed.core_exchange_rate.quote.asset_id );
    }
 
    FC_ASSERT( !feed.settlement_price.is_null() );