diff --git a/codex-rs/app-server/tests/suite/v2/thread_start.rs b/codex-rs/app-server/tests/suite/v2/thread_start.rs
index 9db85033f4..1d4e8fdc22 100644
--- a/codex-rs/app-server/tests/suite/v2/thread_start.rs
+++ b/codex-rs/app-server/tests/suite/v2/thread_start.rs
@@ -22,6 +22,7 @@ use codex_protocol::openai_models::ReasoningEffort;
 use pretty_assertions::assert_eq;
 use serde_json::Value;
 use serde_json::json;
+use std::collections::HashMap;
 use std::path::Path;
 use tempfile::TempDir;
 use tokio::time::timeout;