diff --git a/packages/contracts/tasks/deploy/poll/01-poll.ts b/packages/contracts/tasks/deploy/poll/01-poll.ts
index 905e4a6b4..4a6459019 100644
--- a/packages/contracts/tasks/deploy/poll/01-poll.ts
+++ b/packages/contracts/tasks/deploy/poll/01-poll.ts
@@ -100,9 +100,7 @@ deployment.deployTask(EDeploySteps.Poll, "Deploy poll").then((task) =>
             intStateTreeDepth,
             voteOptionTreeDepth,
           },
-          {
-            messageBatchSize,
-          },
+          messageBatchSize,
           unserializedKey.asContractParam(),
           extContracts,
           emptyBallotRoot.toString(),