We flew two domestic Korean Air flights this past week. On the second one, security stopped us. Our Korean Airline boarding cards, booked with our membership points, did not have our middle names. Our passports do. We were sent to the ticketing counter where the agent printed boarding cards, handwrote in our middle names, and stamped the boarding cards. We were then allowed thru security.

I do not see a way to add our middle names to our Korean Airline profiles. I'd like to avoid this issue in the future. Is there a way to do so?