diff --git a/src/main/native-chat/agent-session-journal/journal-submission-positions.test.ts b/src/main/native-chat/agent-session-journal/journal-submission-positions.test.ts
index d8aa5b4870cc..374163786053 100644
--- a/src/main/native-chat/agent-session-journal/journal-submission-positions.test.ts
+++ b/src/main/native-chat/agent-session-journal/journal-submission-positions.test.ts
@@ -18,6 +18,7 @@ import {
   type AgentJournalMessageItem,
   type AgentSessionJournalIdentity
 } from '../../../shared/agent-session-journal-types'
+import { codexProviderHandle } from '../../../shared/agent-session-provider-handle-encoding'
 import { readAgentSessionHydrationPage } from '../agent-session-wire/agent-session-history-page'
 import { createTrackedJournalOpener } from './journal-host-database-test-support'
 
@@ -26,7 +27,7 @@ const IDENTITY: AgentSessionJournalIdentity = {
   workspaceId: 'workspace-1',
   hostId: 'host-1',
   agent: 'codex',
-  providerHandle: { kind: 'codex', threadId: 'thread-1' }
+  providerHandle: codexProviderHandle('thread-1')
 }
 const BODY: AgentJournalMessageItem = {
   kind: 'message',