The Spanish champions booked their place in the last 16 after a 3-1 win, with Messi scoring twice to end his recent goal drought.
"It was only a matter of matches and in front of goal Lionel Messi is always a machine. Today he has scored two and I hope he can continue that way," UEFA.com quotes him as saying.
"I think we played a good first half and we suffered a bit in the second half but the victory leaves us in a very good position in the group."
Barcelona are top of Champions League Group H with 10 points.