diff --git a/beacon-chain/p2p/gossip_topic_mappings.go b/beacon-chain/p2p/gossip_topic_mappings.go
index 2a763b256..9aba63458 100644
--- a/beacon-chain/p2p/gossip_topic_mappings.go
+++ b/beacon-chain/p2p/gossip_topic_mappings.go
@@ -54,7 +54,9 @@ func init() {
 	for k, v := range gossipTopicMappings {
 		GossipTypeMapping[reflect.TypeOf(v)] = k
 	}
-	// Specially handle Altair Objects.
+	// Specially handle Altair objects.
 	GossipTypeMapping[reflect.TypeOf(&ethpb.SignedBeaconBlockAltair{})] = BlockSubnetTopicFormat
+	// Specially handle Bellatrix objects.
 	GossipTypeMapping[reflect.TypeOf(&ethpb.SignedBeaconBlockBellatrix{})] = BlockSubnetTopicFormat
+	GossipTypeMapping[reflect.TypeOf(&ethpb.SignedBlindedBeaconBlockBellatrix{})] = BlockSubnetTopicFormat
 }
diff --git a/beacon-chain/rpc/apimiddleware/structs.go b/beacon-chain/rpc/apimiddleware/structs.go
index 756c23ce9..784b32f9a 100644
--- a/beacon-chain/rpc/apimiddleware/structs.go
+++ b/beacon-chain/rpc/apimiddleware/structs.go
@@ -457,7 +457,7 @@ type blindedBeaconBlockBodyBellatrixJson struct {
 	Deposits               []*depositJson              `json:"deposits"`
 	VoluntaryExits         []*signedVoluntaryExitJson  `json:"voluntary_exits"`
 	SyncAggregate          *syncAggregateJson          `json:"sync_aggregate"`
-	ExecutionPayloadHeader *executionPayloadHeaderJson `json:"execution_payload"`
+	ExecutionPayloadHeader *executionPayloadHeaderJson `json:"execution_payload_header"`
 }
 
 type executionPayloadJson struct {
@@ -489,7 +489,7 @@ type executionPayloadHeaderJson struct {
 	GasUsed          string `json:"gas_used"`
 	TimeStamp        string `json:"timestamp"`
 	ExtraData        string `json:"extra_data" hex:"true"`
-	BaseFeePerGas    string `json:"base_fee_per_gas" hex:"true"`
+	BaseFeePerGas    string `json:"base_fee_per_gas" uint256:"true"`
 	BlockHash        string `json:"block_hash" hex:"true"`
 	TransactionsRoot string `json:"transactions_root" hex:"true"`
 }