Ackerman IN, Page RS, Schoch P, et al. Investigating well-being, work limitations and preferences for self-management education and peer support among younger people with hip and knee osteoarthritis: protocol for a cross-sectional study. BMJ Open 2013;3:e003030. One of the names in the Acknowledgements section is incorrect. ‘Haria Lambriou’ should be spelt ‘Haria Lambrou’.