diff --git a/codex-rs/Cargo.lock b/codex-rs/Cargo.lock
index c541ec583a..d54ddaae29 100644
--- a/codex-rs/Cargo.lock
+++ b/codex-rs/Cargo.lock
@@ -1879,7 +1879,6 @@ dependencies = [
  "anyhow",
  "filedescriptor",
  "lazy_static",
- "libc",
  "log",
  "portable-pty",
  "pretty_assertions",
diff --git a/codex-rs/utils/pty/src/tests.rs b/codex-rs/utils/pty/src/tests.rs
index 0684fa9faa..b06f996b73 100644
--- a/codex-rs/utils/pty/src/tests.rs
+++ b/codex-rs/utils/pty/src/tests.rs
@@ -280,6 +280,9 @@ fn normalize_cwd_lines(output: &[u8]) -> Vec<String> {
         .collect()
 }
 
+// This is not dead code but this is not used on Windows, and we still want compiles check
+// everywhere.
+#[allow(dead_code)]
 fn strip_echoed_input(lines: Vec<String>, input: &str) -> Vec<String> {
     lines.into_iter().filter(|line| line != input).collect()
 }