British sports car manufacturer Morgan has issued a recall on certain versions of its iconic 3 Wheeler because of missing warning labels on the vehicles’ brake fluid reservoirs.

The recall affects both 2012 and 2013 model year 3 Wheelers, but only those examples built between October 2012 and July 2013.

Morgan says there are 139 of its 3 Wheelers included in the latest recall in the U.S. alone.

According to the company, the brake fluid reservoir on the affected vehicles does not have a filling warning label. Thus, these vehicles fail to conform to the requirement of Federal Motor Vehicle Safety Standard (FMVSS) #122, which outlines rules for motorcycle brake systems. The 3 Wheeler is classified as a motorcycle by the federal government.

Without the warning label, users may fail to fill the reservoir to the appropriate level, which may result in a reduction of brake performance, increasing the risk of a crash.

Morgan is in the process of notifying owners affected by the recall and will apply a brake fluid reservoir filling warning label to their 3 Wheelers, free of charge.

For further information you can contact the National Highway Traffic Safety Administration at 1-888-327-4236 (reference recall campaign number 13V313000) or Morgan’s American agent at 1-505-570-1845.