Tiffani Thiessen expecting baby No. 2

Tiffani Thiessen is pregnant for a second time.

She and husband, Brady Smith, are expecting their second child together this year. The 40-year-old actress revealed the news on Instagram:

The couple, who wed in 2005, are already parents to 4-year-old daughter Harper.

In December, Thiessen spoke with CBS News about spending the holidays with her daughter.

"I always love to find new things -- now that I have a kid, she's four and a half -- finding new adventures to do during her holiday break," she said. "So like ice skating, and going to see her first 'Nutcracker' this year, which I'm super super-excited to go take her."

Thiessen recently wrapped up a six-year stint on the USA Network series "White Collar," starring Golden Globe winner Matt Bomer.

"Six years, and six seasons on that show -- very sad but I guess like all good things, they have to come to an end," she told CBS News.