diff --git a/migrations/7_pol_migration.js b/migrations/7_pol_migration.js
index df317979..05fa06f6 100644
--- a/migrations/7_pol_migration.js
+++ b/migrations/7_pol_migration.js
@@ -1,3 +1,5 @@
+const ethUtils = require('ethereumjs-util')
+
 const utils = require('./utils')
 const contractAddresses = require('../contractAddresses.json')