diff --git a/pkg/types/block.go b/pkg/types/block.go
index 19c9b92..631aa0d 100644
--- a/pkg/types/block.go
+++ b/pkg/types/block.go
@@ -118,6 +118,7 @@ type BlockEvent struct {
 	TransactionBlock              bool                          `json:"transaction_block"`
 	KSize                         uint8                         `json:"k_size"`
 	HeaderHash                    Bytes32                       `json:"header_hash"`
+	ForkHeight                    uint32                        `json:"fork_height"`
 	Height                        uint32                        `json:"height"`
 	ValidationTime                float64                       `json:"validation_time"`
 	PreValidationTime             float64                       `json:"pre_validation_time"`