diff --git a/content/u/advent-calendar/21/contents.lr b/content/u/advent-calendar/mattermost/contents.lr
similarity index 100%
rename from content/u/advent-calendar/21/contents.lr
rename to content/u/advent-calendar/mattermost/contents.lr
diff --git a/content/u/advent-calendar/22/contents.lr b/content/u/advent-calendar/viirb-maxi/contents.lr
similarity index 100%
rename from content/u/advent-calendar/22/contents.lr
rename to content/u/advent-calendar/viirb-maxi/contents.lr
diff --git a/content/u/advent-calendar/20/contents.lr b/content/u/advent-calendar/viwhat/contents.lr
similarity index 100%
rename from content/u/advent-calendar/20/contents.lr
rename to content/u/advent-calendar/viwhat/contents.lr