diff --git a/libraries/chain/include/graphene/chain/asset_evaluator.hpp b/libraries/chain/include/graphene/chain/asset_evaluator.hpp
index 8884b2c119..47a77dd948 100644
--- a/libraries/chain/include/graphene/chain/asset_evaluator.hpp
+++ b/libraries/chain/include/graphene/chain/asset_evaluator.hpp
@@ -160,6 +160,10 @@ namespace graphene { namespace chain {
             template<typename T>
             void operator()( const T& v )const {}
 
+            void operator()( const graphene::chain::bid_collateral_operation& v )const {
+               FC_ASSERT( false, "Not allowed until hardfork" );
+            }
+
             void operator()( const graphene::chain::asset_create_operation& v )const {
                FC_ASSERT( v.fee.asset_id == asset_id_type(), "Can only pay fee in BTS since block #21040000" );
             }