diff --git a/ethereum/migrations/prod/4_pyth_add_events_and_update_fee.js b/ethereum/migrations/prod/4_pyth_add_events_and_update_fee.js
index dff94947..cc873030 100644
--- a/ethereum/migrations/prod/4_pyth_add_events_and_update_fee.js
+++ b/ethereum/migrations/prod/4_pyth_add_events_and_update_fee.js
@@ -11,6 +11,6 @@ const { upgradeProxy } = require("@openzeppelin/truffle-upgrades");
  *   the contract activity.
  */
 module.exports = async function (deployer) {
-    const instance = await PythUpgradable.deployed();
-    await upgradeProxy(instance.address, PythUpgradable, { deployer });
+    const proxy = await PythUpgradable.deployed();
+    await upgradeProxy(proxy.address, PythUpgradable, { deployer });
 }