diff --git a/codex-rs/core/src/codex.rs b/codex-rs/core/src/codex.rs
index 2892b3cb73..93eeda3c15 100644
--- a/codex-rs/core/src/codex.rs
+++ b/codex-rs/core/src/codex.rs
@@ -3363,8 +3363,7 @@ impl Session {
     /// lock.
     ///
     /// When live history diverges in any other way, replacement still happens,
-    /// concurrent writes are dropped, and a warning is emitted instead of
-    /// propagating that detail through the return value.
+    /// concurrent writes are dropped, and a warning is emitted.
     pub(crate) async fn replace_compacted_history(
         &self,
         mut items: Vec<ResponseItem>,