diff --git a/eth/backend.go b/eth/backend.go
index 8cd97584fd6..0cde02c5d8c 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -624,7 +624,7 @@ func New(ctx context.Context, stack *node.Node, config *ethconfig.Config, logger
 		}
 	}
 
-	sentryMcDisableBlockDownload := config.PolygonSync || config.PolygonSyncStage
+	sentryMcDisableBlockDownload := chainConfig.Bor != nil && (config.PolygonSync || config.PolygonSyncStage)
 	backend.sentriesClient, err = sentry_multi_client.NewMultiClient(
 		backend.chainDB,
 		chainConfig,