diff --git a/codex-rs/core/tests/common/test_codex.rs b/codex-rs/core/tests/common/test_codex.rs
index 0a01ed1ae4..dc10cf6420 100644
--- a/codex-rs/core/tests/common/test_codex.rs
+++ b/codex-rs/core/tests/common/test_codex.rs
@@ -231,7 +231,7 @@ impl TestCodexBuilder {
     ) -> anyhow::Result<(Config, Arc<TempDir>)> {
         let model_provider = ModelProviderInfo {
             base_url: Some(base_url),
-            ..built_in_model_providers(/* openai_base_url */ None)["openai"].clone()
+            ..built_in_model_providers(/*openai_base_url=*/ None)["openai"].clone()
         };
         let cwd = Arc::new(TempDir::new()?);
         let mut config = load_default_config_for_test(home).await;