Coventry City manager Steven Pressley was delighted to have signed Arron Martin.
The defender joins City after being released by Yeovil Town and speaking to Keiran Crowley, Pressley said: "We're delighted to be able to bring Aaron here on a permanent basis.
"We tried to bring Aaron to the club two years ago and he is a player that I have tracked ever since.
"He is a terrific professional with a real desire to improve and we believe that we can give him the confidence and platform to do so."