diff --git a/codex-rs/core/src/codex.rs b/codex-rs/core/src/codex.rs
index 760366885c..f969cefd58 100644
--- a/codex-rs/core/src/codex.rs
+++ b/codex-rs/core/src/codex.rs
@@ -339,7 +339,6 @@ use codex_protocol::models::ContentItem;
 use codex_protocol::models::DeveloperInstructions;
 use codex_protocol::models::ResponseInputItem;
 use codex_protocol::models::ResponseItem;
-use codex_protocol::models::ResponseItemMetadata;
 use codex_protocol::openai_models::ReasoningEffort as ReasoningEffortConfig;
 use codex_protocol::protocol::CodexErrorInfo;
 use codex_protocol::protocol::InitialHistory;