Exterior paint over Interior paint

[slownsteady]

The wooden threshold to our back door needed repainting and after a good exterior prime coat, my "other half" grabbed the wrong paint and gave it a coat of interior white.
Now what do we have to do (if anything) before we can recoat it with the proper exterior paint?

 

[oldognewtrick]

Just make sure it's clean, dull and dry. Then have fun painting...

 

[chrisn]

what he said^^