A rail link to Melbourne airport will become a reality under a coalition government in Victoria.
Premier Denis Napthine announced it was time the rail link was built, during his address to the Victorian Liberal Party's state council meeting on Sunday.
Dr Napthine said the rail link will deliver efficient, high-capacity regular services to Melbourne airport.
The project will be outlined in the upcoming May state budget, he said.
"I'm pleased to announce that my government will build the much needed Melbourne airport rail link," he told the conference.
"This project has been on the books for over 40 years," he said.
"It is time this rail link was built."
Melbourne airport attracts 30 million passengers a year and this was expected to double in 20 years, he said.