diff --git a/lib/TransactionDb.js b/lib/TransactionDb.js
index f6f3876b9..fe34a5925 100644
--- a/lib/TransactionDb.js
+++ b/lib/TransactionDb.js
@@ -706,7 +706,8 @@ TransactionDb.prototype.migrateV02 = function(cb) {
       var v = data.value.split(':');
       dbScript.push({
         type: 'put',
-        key: ADDR_PREFIX + k[1] + '-' + (END_OF_WORLD_TS - parseInt(v[1])) + '-' + k[3] + '-' + [4],
+        key: ADDR_PREFIX + k[1] + '-' + (END_OF_WORLD_TS - parseInt(v[1]))
+              + '-' + k[2] + '-' + k[3],
         value: v[0],
       });
       if (c++>N) {