diff --git a/internal/ethapi/api_bundle.go b/internal/ethapi/api_bundle.go
index b5937c1d00..5f9e76db2a 100644
--- a/internal/ethapi/api_bundle.go
+++ b/internal/ethapi/api_bundle.go
@@ -95,6 +95,11 @@ func (s *PrivateTxBundleAPI) SendBundle(ctx context.Context, args types.SendBund
 		RevertingTxHashes: args.RevertingTxHashes,
 	}
 
+	// If the maxBlockNumber and maxTimestamp are not set, set max ddl of bundle as MaxBundleAliveBlock
+	if bundle.MaxBlockNumber == 0 && bundle.MaxTimestamp == 0 {
+		bundle.MaxBlockNumber = currentHeader.Number.Uint64() + MaxBundleAliveBlock
+	}
+
 	err := s.b.SendBundle(ctx, bundle)
 	if err != nil {
 		return common.Hash{}, err