Google Webmaster Tools: sitemap & incorrect namespace

edited April 2013 in Bugs and Errors
Hi, I've added sitemap to my Google Webmaster Tools and it show:

http://i.imgur.com/BCnNonb.png

"Your Sitemap or Sitemap index file doesn't properly declare the namespace. Expected: http://www.google.com/schemas/sitemap-video/1.0 Found: video"

How to fix this?
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