I would say "humility". It's the opposite of pridefulness, conceit, hubris, etc. A person with humility is "humble", and if you're humble, you don't mind being wrong or corrected.
humility n. The quality or condition of being humble.
humble adj. Marked by meekness or modesty in behavior, attitude, or spirit; not arrogant or prideful
American Heritage® Dictionary of the English Language, Fifth Edition.
https://www.thefreedictionary.com/humble