Katherine Heigl is "ready for another baby".

The 'One for the Money' actress - who already has three-year-old adopted daughter Naleigh with husband Josh Kelley - says the couple are keen to add to their family and would like another child in the near future.

Katherine - who adopted Naleigh when she was nine months old - told 'Access Hollywood': "I would love to have another one. I'm ready for another baby! I mean, it's been two years."

Katherine loves being a mother to little Naleigh and admits she's been blessed with a very well behaved child.

She said: "She's a really good girl. All kids go through their little phases and she'll have her moments of stubbornness or, you know, snottiness, but generally speaking, she's a surprising, wonderful, good-natured, and charming kid.

"She doesn't have a lot of those moments, so I'm really proud of her. I just think she's really special."

However, the former 'Grey's Anatomy' star admits it can be hard being a working mother and spending time away from her daughter.

She said: "When I take a job I do have to look at my daughter and have to tell her, 'I'm going to work, you're not going to see me for a while.' I have to, in a way, disengage. Otherwise, my mind - I'm just split in so many directions.

"You feel like you're failing your child."