diff --git a/core/types/suave_structs.go b/core/types/suave_structs.go
index 849acfcf9b..0a7001a386 100644
--- a/core/types/suave_structs.go
+++ b/core/types/suave_structs.go
@@ -19,6 +19,7 @@ type BuildBlockArgs struct {
 	Random         common.Hash
 	Withdrawals    []*Withdrawal
 	Extra          []byte
+	BeaconRoot     common.Hash
 	FillPending    bool
 }