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 0d7cf8f255..d8f48d8867 100644
--- a/packages/host/apiproxy/tests/api-proxy-agent-preset.spec.ts
+++ b/packages/host/apiproxy/tests/api-proxy-agent-preset.spec.ts
@@ -109,7 +109,7 @@ async function harness(presets?: readonly string[], persistence?: unknown) {
   }
   ctx.agents.setFactory(factory)
   const api = createApiProxy(ctx, {
-    defaultTarget: () => ({ provider: 'test', model: 'test-model' }),
+    defaultModelSelection: () => ({ provider: 'test', model: 'test-model' }),
     cwd,
     workspaceRoot: cwd,
   })