As reported in the Evening Times, workmen removed one of two metal arches at Cessnock underground station this week as part of the city's £300million plan to modernise the underground network ahead of the 2014 Commonwealth Games.
Within hours, locals, supported by politicians including Nicola Sturgeon, had taken to Twitter to demand that the missing archway was put back.
Following days of pressure, Strathclyde Partnership for Transport (SPT), which runs the Subway, relented.
An SPT spokeswoman said: "Although the signs are not of architectural significance, it is obvious from our discussion with the campaigners that they are valued by the local community and they have a strong emotional attachment to them as part of a sense of place.
"As a result SPT has agreed to reinstate the metal arch which has been taken down and the other will remain in place."
Campaigner Avril Williamson said: "We're ecstatic that SPT has seen sense."