More needs to be done to deal with the massive harm caused by problem gambling in the ACT, Greens MLA Deb Foskey has declared.

Productivity Commission figures indicate the net gaming machine revenue of Canberra clubs is $110 million a year, $40 million of which comes from problem gamblers.

Dr Foskey said Lifeline's problem gambling service Clubcare was a start - but was not nearly enough.

"So while the Clubcare investment (from Canberra clubs) of one million dollars over three years sounds significant, it is less than one percent of the income from problem gambling, and it only funds the bare bones of a gambling counselling service in the ACT," she said.

"Lifeline will have to look elsewhere for funds for its gambling help phone service - which is after all how most people first make contact with Clubcare services."

The MLA said she was not surprised to see an increase in support from licenced clubs this year for Clubcare.

"In the context of recent public debate about the negative impact of poker machines around Australia, it makes good business sense to do a bit of damage control," she said.

"I suspect that is what this initiative is all about."

The Greens have called on the Stanhope government to fund the shortfall in Lifeline's phone counselling budget.