diff --git a/drand_contract.ts b/drand_contract.ts
index 4bbc02b..bbd960f 100644
--- a/drand_contract.ts
+++ b/drand_contract.ts
@@ -37,13 +37,15 @@ export async function queryIsAllowListed(
 export async function queryIsIncentivized(
   client: CosmWasmClient,
   contractAddress: string,
-  rounds: number[],
+  round: number,
   botAddress: string,
-): Promise<boolean[]> {
+): Promise<boolean> {
   const { incentivized } = await client.queryContractSmart(contractAddress, {
-    is_incentivized: { rounds, sender: botAddress },
+    is_incentivized: { rounds: [round], sender: botAddress },
   });
   // console.log(`#${rounds[0]} incentivized query returned at ${publishedSince(rounds[0])}ms`)
   assert(Array.isArray(incentivized));
-  return incentivized;
+  const first = incentivized[0];
+  assert(typeof first === "boolean");
+  return first;
 }
diff --git a/main.ts b/main.ts
index 22be5ba..57f8a21 100644
--- a/main.ts
+++ b/main.ts
@@ -149,8 +149,7 @@ if (import.meta.main) {
       // enough for the query to finish. In case the query is not yet done,
       // we can wait for the promise to be resolved.
       // console.log(`Now         : ${new Date().toISOString()}\nPublish time: ${new Date(timeOfRound(round)).toISOString()}`);
-      const promise = queryIsIncentivized(client, config.drandAddress, [m], botAddress).then(
-        (incentivized) => !!incentivized[0],
+      const promise = queryIsIncentivized(client, config.drandAddress, m, botAddress).catch(
         (_err) => false,
       );
       incentivizedRounds.set(m, promise);