diff --git a/lib/plugins.js b/lib/plugins.js
index df97d8d7..315d8dfe 100644
--- a/lib/plugins.js
+++ b/lib/plugins.js
@@ -158,7 +158,7 @@ function plugins (settings, deviceId) {
         throw new Error('Denominations don\'t add up, recyclers were changed.')
       }
 
-      return _.map(r => r[0] + r[1].provisioned, _.zip(sum, tx.bills))
+      return _.map(([acc, bill]) => acc + bill.provisioned, _.zip(sum, bills))
     }
 
     const provisioned = _.reduce(sumTxs, _.times(_.constant(0), _.size(recyclers)), redeemableTxs)