diff --git a/openhcl/ohcldiag-dev/src/main.rs b/openhcl/ohcldiag-dev/src/main.rs
index 9caf367ce6..50a3f11948 100644
--- a/openhcl/ohcldiag-dev/src/main.rs
+++ b/openhcl/ohcldiag-dev/src/main.rs
@@ -399,7 +399,7 @@ async fn run(
     stderr_thread
         .join()
         .unwrap()
-        .context("failed stdout copy")?;
+        .context("failed stderr thread")?;
 
     let status = process.wait().await?;
     std::process::exit(status.exit_code());