diff --git a/codex-rs/core/tests/suite/mod.rs b/codex-rs/core/tests/suite/mod.rs
index 0744624a92..defc704353 100644
--- a/codex-rs/core/tests/suite/mod.rs
+++ b/codex-rs/core/tests/suite/mod.rs
@@ -73,6 +73,7 @@ mod tool_harness;
 mod tool_parallelism;
 mod tools;
 mod truncation;
+mod turn_state;
 mod undo;
 mod unified_exec;
 mod unstable_features_warning;