diff --git a/packages/host/apiproxy/tests/api-proxy-agent-preset.spec.ts b/packages/host/apiproxy/tests/api-proxy-agent-preset.spec.ts
index f78c449034..b8383efe8e 100644
--- a/packages/host/apiproxy/tests/api-proxy-agent-preset.spec.ts
+++ b/packages/host/apiproxy/tests/api-proxy-agent-preset.spec.ts
@@ -134,7 +134,7 @@ async function harness(
   }
   ctx.agents.setFactory(factory)
   const api = createApiProxy(ctx, {
-    defaultTarget: () => ({ provider: 'test', model: 'test-model' }),
+    defaultModelSelection: () => ({ provider: 'test', model: 'test-model' }),
     cwd,
     workspaceRoot: cwd,
     ...options.defaults,