The Netherlands international, who has enjoyed a prolific, well-travelled 18-year career, joined the Bluebirds last August after being released by Charlton, and has formed an effective partnership up front with Paul Parry.
Meanwhile, Jones insisted that the club's youth policy has set the Bluebirds on a firm footing for the future.
"We had to sell the likes of James Collins and Danny Gabbidon and people said that the crown jewels had gone," he told BBC Radio Wales' Sportstime programme.
We want to grow, and the next stage is to be able to buy
"Then Cameron Jerome, Michael Chopra and Chris Gunter went, but you look at the club and there are a lot of assets there.
"They are putting the club on firm ground whereas previously it was on shifting sand.
"The younger element will be looked at by some of the bigger clubs, but we are trying to build, not to dismantle.
"We want to grow, and the next stage is to be able to buy."
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