diff --git a/lib/rewards.js b/lib/rewards.js
index d4ed05bc..baa4b874 100644
--- a/lib/rewards.js
+++ b/lib/rewards.js
@@ -2,7 +2,7 @@ import timers from 'node:timers/promises'
 
 /**
  * @param {object} args
- * @param {string[]} args.contracts
+ * @param {import('ethers').Contract[]} args.contracts
  * @param {string} args.ethAddress
  * @param {(m: Partial<import('./metrics.js').MetricsEvent>) => void} args.onMetrics
  */