diff --git a/documents/blockchain/v10/documents/block.rs b/documents/blockchain/v10/documents/block.rs
index 0305af99761abe685cafcc3d3c8d1f2c839398b5..a3786156a37899c6155cd98036d92676130973d5 100644
--- a/documents/blockchain/v10/documents/block.rs
+++ b/documents/blockchain/v10/documents/block.rs
@@ -114,7 +114,11 @@ pub struct BlockDocument {
     /// Currency parameters (only in genesis block)
     pub parameters: Option<BlockParameters>,
     /// Hash of the previous block
+<<<<<<< HEAD
     pub previous_hash: Hash,
+=======
+    pub previous_hash: Option<Hash>,
+>>>>>>> ab39d74... [fix] passBlockDocument fields in public
     /// Issuer of the previous block
     pub previous_issuer: Option<ed25519::PublicKey>,
     /// Hash of the deterministic content of the block