diff --git a/cmd/lotus-seal-worker/main.go b/cmd/lotus-seal-worker/main.go
index 2116dd228..9e6843dbf 100644
--- a/cmd/lotus-seal-worker/main.go
+++ b/cmd/lotus-seal-worker/main.go
@@ -283,7 +283,7 @@ var runCmd = &cli.Command{
 		if cctx.Bool("commit") {
 			taskTypes = append(taskTypes, sealtasks.TTCommit2)
 		}
-		if cctx.Bool("replicaupdate") {
+		if cctx.Bool("replica-update") {
 			taskTypes = append(taskTypes, sealtasks.TTReplicaUpdate)
 		}
 		if cctx.Bool("prove-replica-update2") {