Captions showing up in teaser text

Hi all,

I have a problem. If I start a post with a picture with caption, the caption shows up in the teaser text (which if I’m not mistaken are the first 55 words of the_content()).

See, for instance:

https://www.weirdostuff.com/page/7

e.g. in the last post. How can I avoid this?

Thank you!