Crewmembers aboard the International Space Station (ISS) completed a spacewalk to fix an ammonia leak.

Performing their second spacewalk in a week and a half, Kjell Lindgren or Scott Kelly ventured out to repair a cooling line, according to The Associated Press. During the spacewalk, Lindgren noticed a small ammonia leak, which could prove hazardous if it got on either's spacesuit.

Then right after dealing with the ammonia leak, Kelly noticed a stitch loose in his glove. Fortunately neither one had any ammonia on them when they checked upon reentry and the loose stitch in Kelly's glove was inconsequential, The AP reported.

The mission was the 190th spacewalk in the history of the ISS, which recently reached 15 years of regular inhabitation, Agence France Press reported. Despite the hiccups during the mission, mission controllers deemed the spacewalk a success.

Kelly recently surpassed the halfway mark in his one-year stay aboard the ISS, which NASA will use to examine the long-term effects of living in space. The data Kelly is accumulating with each day aboard the ISS will one day be used for future deep space flights.