A five-year-old girl was hurt after tripping and falling through an open panel of a temporary bus shelter into a Lynn road at the weekend.
Lucie Hanson had been waiting to catch the 505 Norfolk Green bus with her grandparents, Mavis and Jim, when the incident happened in Portland Street on Sunday afternoon.
She suffered minor injuries and attended school as normal yesterday.
But her mother, Sharleen Andrews, said they were lucky the incident was not more serious.
Although council officials yesterday said the problem was being fixed, she believes that more should have been done to ensure the safety of passengers in the area.
She said: “If there had been a car rather than a bus, it could have killed her. It has scared her.”
Miss Andrews, of Sandygate Lane, Terrington St Clement, said Lucie had tripped over a metal bar, which caused her to fall through a gap left by the missing panel into the road.
She said Mrs Hanson had reported the issue to a member of West Norfolk Council staff yesterday morning, who indicated that the panel should already have been fixed.
She added: “They were aware of it, so why haven’t they done anything about it?”
The bay is one of four which have been moved from the bus station to Portland Street on a temporary basis, while work on a £1.6 million regeneration of the interchange continues.
Several Norfolk Green services including the 505, plus the First X1 to Peterborough and Norwich, will start and terminate from Portland Street until June while the project is completed.
A West Norfolk Council spokesman said on Monday: “The matter was reported to us this morning and we went immediately to site to investigate.
“One of the panels on the bus stop was missing. This is being repaired as we speak.
“We are glad that the girl is OK and thank the family for drawing this to our attention so swiftly.”