The pair issued a Mayday call when their 12ft scalloper got into difficulty about four miles off Wick in the Highlands just after 2pm on Monday.
Their vessel was taking on water and the onboard pump was not working.
Wick lifeboat arrived at the scene within about 15 minutes and handed over another pump which enabled the crewmen to bail out the water.
The scalloper then sailed back to Wick harbour escorted by the lifeboat, with some of the lifeboat crew on board to help.
It arrived at Wick harbour at about 3pm.