diff --git a/codex-rs/thread-manager-sample/src/main.rs b/codex-rs/thread-manager-sample/src/main.rs
index 1bea0cae8b..6f0be601ea 100644
--- a/codex-rs/thread-manager-sample/src/main.rs
+++ b/codex-rs/thread-manager-sample/src/main.rs
@@ -251,6 +251,7 @@ fn new_config(model: Option<String>, arg0_paths: Arg0DispatchPaths) -> anyhow::R
         model_catalog: None,
         model_verbosity: None,
         chatgpt_base_url: "https://chatgpt.com/backend-api/".to_string(),
+        system_proxy: None,
         apps_mcp_product_sku: None,
         realtime_audio: RealtimeAudioConfig::default(),
         experimental_realtime_ws_base_url: None,