diff --git a/src/node/dvfcore.rs b/src/node/dvfcore.rs
index 6a108cc..b55fb4d 100644
--- a/src/node/dvfcore.rs
+++ b/src/node/dvfcore.rs
@@ -149,7 +149,6 @@ pub struct DvfDutyCheckMessage {
     pub data: Vec<u8>,
     #[serde(skip_serializing_if = "Option::is_none")]
     pub sign_hex: Option<String>,
-    pub pubkey: Option<Vec<u8>>
 }
 
 impl DvfDutyCheckMessage {
@@ -417,23 +416,19 @@ impl<E: EthSpec> MessageHandler for DvfDutyCheckHandler<E> {
                                 }
                             };
                         let fee_recipient = block.body().execution_payload().unwrap().fee_recipient();
-                        
-                        match check_msg.pubkey {
-                            Some(pubkey) => {
-                                info!("block proposal full block, va pubic key {}, fee recipient {}", hex::encode(&pubkey), format!("{0:0x}", fee_recipient));
-                                if !self.db.check_validator_fee_recipient(pubkey, fee_recipient).await.unwrap() {
-                                    reply(
-                                        writer,
-                                        DutySafety::Invalid,
-                                        format!("fee recipient is not consistent"),
-                                    )
-                                    .await;
-                                    error!("fee recipient is not consistent");
-                                    return Ok(());
-                                }
-                            }
-                            None => {}
+                        let pubkey = self.validator_pk.serialize().to_vec();
+                        info!("block proposal full block, va pubic key {}, fee recipient {}", hex::encode(&pubkey), format!("{0:0x}", fee_recipient));
+                        if !self.db.check_validator_fee_recipient(pubkey, fee_recipient).await.unwrap() {
+                            reply(
+                                writer,
+                                DutySafety::Invalid,
+                                format!("fee recipient is not consistent"),
+                            )
+                            .await;
+                            error!("fee recipient is not consistent");
+                            return Ok(());
                         }
+                        
                         self.sign_block(writer, block, check_msg.domain_hash).await;
                     }
                     BlockType::Blinded => {
@@ -612,8 +607,7 @@ impl DvfSigner {
             domain_hash,
             check_type,
             data: data.to_vec(),
-            sign_hex: None,
-            pubkey: Some(self.validator_public_key().serialize().to_vec())
+            sign_hex: None
         };
         match msg.sign_digest(&self.node_secret) {
             Ok(sign_hex) => msg.sign_hex = Some(sign_hex),