diff --git a/packages/protobuf/buf_export.sh b/packages/protobuf/buf_export.sh
new file mode 100644
index 0000000000..3472056942
--- /dev/null
+++ b/packages/protobuf/buf_export.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+set -x # echo on
+
+rm -rf proto
+
+pnpm buf export buf.build/cosmos/cosmos-sdk:e7a85cef453e4b999ad9aff8714ae05f --output proto
+pnpm buf export buf.build/cosmos/ibc:7ab44ae956a0488ea04e04511efa5f70 --output proto
+pnpm buf export buf.build/cosmos/ics23:55085f7c710a45f58fa09947208eb70b --output proto
+pnpm buf export buf.build/penumbra-zone/penumbra:312294d02bf945ffa4c1b1dd7cd91328 --output proto
diff --git a/packages/protobuf/src/registry.test.ts b/packages/protobuf/src/registry.test.ts
index df3bfce397..886b93e47e 100644
--- a/packages/protobuf/src/registry.test.ts
+++ b/packages/protobuf/src/registry.test.ts
@@ -6,6 +6,7 @@ import { DutchAuction } from '../gen/penumbra/core/component/auction/v1/auction_
 import { ValidatorInfo } from '../gen/penumbra/core/component/stake/v1/stake_pb.js';
 import { BalancesResponse } from '../gen/penumbra/view/v1/view_pb.js';
 import { typeRegistry } from './registry.js';
+import { Ics20Withdrawal } from '../gen/penumbra/core/component/ibc/v1/ibc_pb.js';
 
 describe('registry contents that are part of services', () => {
   it('includes ValidatorInfo', () => {
@@ -39,4 +40,14 @@ describe('registry contents that are important for noble ibc', () => {
   it('includes BalancesResponse', () => {
     expect(typeRegistry.findMessage(BalancesResponse.typeName)).toBeTruthy();
   });
+
+  it('includes useCompatAddress on Ics20Withdrawal', () => {
+    expect(typeRegistry.findMessage(Ics20Withdrawal.typeName)).toBeTruthy();
+
+    const ics20w = Ics20Withdrawal.fromJson({
+      useCompatAddress: true,
+    });
+
+    expect(ics20w.useCompatAddress).toBe(true);
+  });
 });