diff --git a/src/helpers/types.ts b/src/helpers/types.ts
index 95416f2e..9780bf12 100644
--- a/src/helpers/types.ts
+++ b/src/helpers/types.ts
@@ -80,10 +80,11 @@ export type AckFailuresResponse = {
 type Failure = {
   address: string;
   id: string;
-  sequence_id: string;
   ack: {
-    result: string | null; // base64 encoded bytes
-    error: string | null; // error text
+    response: {
+      result: string | null; // base64 encoded bytes
+      error: string | null; // error text
+    };
   };
   ack_type: string;
   packet: {
diff --git a/src/testcases/run_in_band/interchaintx.test.ts b/src/testcases/run_in_band/interchaintx.test.ts
index 3ebd585d..26cb218b 100644
--- a/src/testcases/run_in_band/interchaintx.test.ts
+++ b/src/testcases/run_in_band/interchaintx.test.ts
@@ -769,41 +769,41 @@ describe('Neutron / Interchain TXs', () => {
         // 3 ack failures, 1 timeout failure, just as described in the tests above
         expect(failures.failures).toEqual([
           expect.objectContaining({
-            channel_id: 'channel-3',
             address:
               'neutron1m0z0kk0qqug74n9u9ul23e28x5fszr628h20xwt6jywjpp64xn4qatgvm0',
             id: '0',
             packet: expect.objectContaining({
+              source_channel: 'channel-3',
               sequence: '2',
             }),
             ack_type: 'ack',
           }),
           expect.objectContaining({
-            channel_id: 'channel-3',
             address:
               'neutron1m0z0kk0qqug74n9u9ul23e28x5fszr628h20xwt6jywjpp64xn4qatgvm0',
             id: '1',
             packet: expect.objectContaining({
+              source_channel: 'channel-3',
               sequence: '3',
             }),
             ack_type: 'ack',
           }),
           expect.objectContaining({
-            channel_id: 'channel-3',
             address:
               'neutron1m0z0kk0qqug74n9u9ul23e28x5fszr628h20xwt6jywjpp64xn4qatgvm0',
             id: '2',
             packet: expect.objectContaining({
+              source_channel: 'channel-3',
               sequence: '4',
             }),
             ack_type: 'ack',
           }),
           expect.objectContaining({
-            channel_id: 'channel-3',
             address:
               'neutron1m0z0kk0qqug74n9u9ul23e28x5fszr628h20xwt6jywjpp64xn4qatgvm0',
             id: '3',
             packet: expect.objectContaining({
+              source_channel: 'channel-3',
               sequence: '5',
             }),
             ack_type: 'timeout',
@@ -890,7 +890,7 @@ describe('Neutron / Interchain TXs', () => {
         );
         expect(failuresResAfter.failures.length).toEqual(3);
 
-        // make sure contract's state hasn't been changed
+        // make sure contract's state has been changed
         const acks = await getAcks(neutronChain, contractAddress);
         expect(acks.length).toEqual(1);
         expect(acks[0].sequence_id).toEqual(+failure.packet.sequence);