diff --git a/indexer_service/protocol/src/convert.rs b/indexer_service/protocol/src/convert.rs
index 46c8811d..2c5d4b09 100644
--- a/indexer_service/protocol/src/convert.rs
+++ b/indexer_service/protocol/src/convert.rs
@@ -599,12 +599,14 @@ impl TryFrom<common::block::Block> for Block {
             header,
             body,
             bedrock_status,
+            bedrock_parent_id,
         } = value;
 
         Ok(Self {
             header: header.into(),
             body: body.try_into()?,
             bedrock_status: bedrock_status.into(),
+            bedrock_parent_id: bedrock_parent_id.into(),
         })
     }
 }
@@ -617,12 +619,14 @@ impl TryFrom<Block> for common::block::Block {
             header,
             body,
             bedrock_status,
+            bedrock_parent_id,
         } = value;
 
         Ok(Self {
             header: header.try_into()?,
             body: body.try_into()?,
             bedrock_status: bedrock_status.into(),
+            bedrock_parent_id: bedrock_parent_id.into(),
         })
     }
 }
diff --git a/indexer_service/protocol/src/lib.rs b/indexer_service/protocol/src/lib.rs
index 8189f7d8..096fbc2f 100644
--- a/indexer_service/protocol/src/lib.rs
+++ b/indexer_service/protocol/src/lib.rs
@@ -30,12 +30,14 @@ pub struct Account {
 
 pub type BlockId = u64;
 pub type TimeStamp = u64;
+pub type MsgId = [u8; 32];
 
 #[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize, Deserialize, JsonSchema)]
 pub struct Block {
     pub header: BlockHeader,
     pub body: BlockBody,
     pub bedrock_status: BedrockStatus,
+    pub bedrock_parent_id: MsgId,
 }
 
 #[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize, Deserialize, JsonSchema)]