diff --git a/eth/catalyst/api.go b/eth/catalyst/api.go
index 00cce259c8..5a001e1ee8 100644
--- a/eth/catalyst/api.go
+++ b/eth/catalyst/api.go
@@ -546,7 +546,7 @@ func (api *ConsensusAPI) newPayload(params engine.ExecutableData, versionedHashe
 			bgu = strconv.Itoa(int(*params.BlobGasUsed))
 		}
 		ebg := "nil"
-		if params.BlobGasUsed != nil {
+		if params.ExcessBlobGas != nil {
 			ebg = strconv.Itoa(int(*params.ExcessBlobGas))
 		}
 		log.Warn("Invalid NewPayload params",