diff --git a/crates/payload/builder/src/payload.rs b/crates/payload/builder/src/payload.rs
index 3b5fa7b5a67a..57d0dceff18d 100644
--- a/crates/payload/builder/src/payload.rs
+++ b/crates/payload/builder/src/payload.rs
@@ -98,7 +98,7 @@ impl From<BuiltPayload> for ExecutionPayloadEnvelopeV3 {
         let BuiltPayload { block, fees, sidecars, .. } = value;
 
         ExecutionPayloadEnvelopeV3 {
-            payload_inner: block.into(),
+            execution_payload: block.into(),
             block_value: fees,
             // From the engine API spec:
             //
diff --git a/crates/rpc/rpc-types/src/eth/engine/payload.rs b/crates/rpc/rpc-types/src/eth/engine/payload.rs
index 3cefc20bf465..6b53c4e84cd2 100644
--- a/crates/rpc/rpc-types/src/eth/engine/payload.rs
+++ b/crates/rpc/rpc-types/src/eth/engine/payload.rs
@@ -107,8 +107,7 @@ impl ExecutionPayloadEnvelopeV2 {
 #[serde(rename_all = "camelCase")]
 pub struct ExecutionPayloadEnvelopeV3 {
     /// Execution payload V3
-    #[serde(flatten)]
-    pub payload_inner: ExecutionPayloadV3,
+    pub execution_payload: ExecutionPayloadV3,
     /// The expected value to be received by the feeRecipient in wei
     pub block_value: U256,
     /// The blobs, commitments, and proofs associated with the executed payload.
@@ -891,4 +890,12 @@ mod tests {
         let payload: ExecutionPayloadV3 = serde_json::from_str(s).unwrap();
         assert_eq!(serde_json::to_string(&payload).unwrap(), s);
     }
+
+    #[test]
+    fn serde_roundtrip_execution_payload_envelope_v3() {
+        // pulled from a geth response getPayloadV3 in hive tests
+        let response = r#"{"executionPayload":{"parentHash":"0xe927a1448525fb5d32cb50ee1408461a945ba6c39bd5cf5621407d500ecc8de9","feeRecipient":"0x0000000000000000000000000000000000000000","stateRoot":"0x10f8a0830000e8edef6d00cc727ff833f064b1950afd591ae41357f97e543119","receiptsRoot":"0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421","logsBloom":"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000","prevRandao":"0xe0d8b4521a7da1582a713244ffb6a86aa1726932087386e2dc7973f43fc6cb24","blockNumber":"0x1","gasLimit":"0x2ffbd2","gasUsed":"0x0","timestamp":"0x1235","extraData":"0xd883010d00846765746888676f312e32312e30856c696e7578","baseFeePerGas":"0x342770c0","blockHash":"0x44d0fa5f2f73a938ebb96a2a21679eb8dea3e7b7dd8fd9f35aa756dda8bf0a8a","transactions":[],"withdrawals":[],"blobGasUsed":"0x0","excessBlobGas":"0x0"},"blockValue":"0x0","blobsBundle":{"commitments":[],"proofs":[],"blobs":[]},"shouldOverrideBuilder":false}"#;
+        let envelope: ExecutionPayloadEnvelopeV3 = serde_json::from_str(response).unwrap();
+        assert_eq!(serde_json::to_string(&envelope).unwrap(), response);
+    }
 }