diff --git a/test/tests/contract-codegen.ts b/test/tests/contract-codegen.ts
index 78aede1..ec54f5c 100644
--- a/test/tests/contract-codegen.ts
+++ b/test/tests/contract-codegen.ts
@@ -1,6 +1,6 @@
 import {assert} from 'chai'
 
-import {ABI, APIClient, Name} from '@wharfkit/antelope'
+import {ABI, APIClient, Name, Serializer} from '@wharfkit/antelope'
 import {makeClient} from '@wharfkit/mock-data'
 
 import fs from 'fs'
@@ -81,6 +81,67 @@ suite('codegen', async function () {
         }
     })
 
+    test('bug', async function () {
+        const data: any = {
+            requirements: {
+                team_id: [],
+                min_power: 0,
+                min_balance: 0,
+                min_stake: 0,
+                min_cumulative_team_contribution: 0,
+            },
+            actions: {
+                delegated_stake: 0,
+                stake_locked_additional_rounds: 0,
+                nft_actions: [
+                    {
+                        collection_name: 'dddd',
+                        schema_name: 'dddddd',
+                        template_id: '3',
+                        match_immutable_attributes: [
+                            {
+                                key: 'keyname',
+                                value: 'keytest',
+                            },
+                        ],
+                        match_mutable_attributes: [],
+                        burn: false,
+                        lock_rounds: 0,
+                    },
+                ],
+                balance_payment: 0,
+            },
+            rewards: {
+                nft_mints: [],
+                balance_deposit: 0,
+                delegated_stake: 0,
+                stake_locked_additional_rounds: 0,
+                activate_powermod_ids: [],
+            },
+            limits: {
+                offer_quantity_remaining: 0,
+                available_until_round: 0,
+            },
+        }
+
+        const test = Boid.Types.offeradd.from(data)
+        /**
+         * The input for `team_id` was an array and comes back as an empty string
+         */
+        assert.equal(test.requirements.team_id, data.requirements.team_id)
+        /**
+         * The value of the `actions.nft_actions[0].match_immutable_attributes[0].value` was a string and comes back as an empty object
+         */
+        assert.equal(
+            String(test.actions.nft_actions[0].match_immutable_attributes[0].value),
+            'keytest'
+        )
+        /**
+         * The input for `rewards.activated_powermod_ids` was an array and comes back as an empty string
+         */
+        assert.equal(test.rewards.activate_powermod_ids, data.rewards.activate_powermod_ids)
+    })
+
     suite('Generated vs Static', function () {
         test('Contracts are identical', function () {
             for (const source of sources) {