Hundreds of backers want Aberdeen City Council to support plans for a replacement marquee at the Dutch Mill.
The Queen's Road hotel and bar has been told to take down the large white structure in the front car park by the end of January.
Council planning bosses described it as an eyesore in this traditional area of the city.
But, in a bid to protect takings and jobs, management are now seeking permission for a £30,000 replacement more in-keeping with its surroundings.
They say there will be redundancies, and a knock-on impact on the local economy, if the new application is rejected.
The Press and Journal says, since it broke the news last Friday, more than 300 supporters have written to the council requesting for the replacement-marquee plan to be approved.
Make a success
Ria McRobbie, from Aberdeen's Birkhall Parade, said: "In the midst of the pandemic, it was great to see some businesses look outside the box and make a success of a terrible situation.
"At a time when we should be supporting local businesses, why would you want to take away something that would have a huge financial impact on a successful business?"
Stewart Rumbles commented: "Don't kill a good thing for Aberdeen."
The Carnegie Gardens resident added: "It would be crazy to make them take this down, for many reasons."
Ana Maria Gomez, from Westhill, wrote: "Please keep up the marquee. It is so nice to be able to eat outdoors without getting wet or freezing cold.
Anna McErlean, from Broomhill Road, said: "Please don't take away the rare good few spots of Aberdeen that we have.
Add life
"We need these places to add life to Aberdeen.
"People are being driven out of Aberdeen because there are not many cool bar spaces and nice places to eat and drink that aren't chains."
The P&J also reports that objector Stephen Main, from Forest Road, said: "The current and proposed marquees are unsightly, and the loss of parking leads to illegal and anti-social parking on nearby roads, particularly Forest Road.
"I have complained to the council on five occasions in the past year regarding the parking problems."