Both NASA and the European Space Agency (ESA) argued the breach was not risky enough to wake the astronauts from their slumber.
The leak was found at about 7 p.m. ET Wednesday by flight controllers in Houston and Moscow. Roscosmos' Soyuz commander Sergey Prokopyev repaired the leak using epoxy placed on a gauze wipe.
A tiny hole in a Russian capsule allowed air to leak from the International Space Station (ISS).
In 2007, another leak occurred in the station's Harmony module in the United States section but officials said at the time the leak was no cause for concern.
Is Russia declining access to the International Space Station (ISS) to the U.S. astronauts from the National Aeronautics and Space Administration (NASA)?
The hole was found in the Russian-made Soyuz capsule which is one of two now docked to the space station.
"As part of its normal operations planning, NASA is continuing to assess multiple scenarios to ensure continued USA access to the International Space Station", NASA spokeswoman Stephanie Schierholz said in an email.
The space agency told its astronauts "no further action was contemplated for the remainder of the day".
NASA and Roscosmos on August 30 said the six-member crew aboard the ISS was not in any danger from what was described as a "micro" pressure leak.
"At night, tests were held and the pressure was monitored for a lengthy period of time".
There are five astronauts now stationed on the ISS: three Americans, two Russians and one German.
Impacts from tiny meteoroids are a permanent threat to the orbiting platform and it was built to withstand the constant bombardment from the dusty fragments that whizz about above the Earth.
In the midst of the search and fix process, according to The Telegraph, NASA ground control officials reported, "Right now Alex has got his finger on that hole and I don't think that's the best remedy for it".