diff --git a/doc/formats.txt b/doc/formats.txt
index 6e4cae3..d8b3320 100644
--- a/doc/formats.txt
+++ b/doc/formats.txt
@@ -158,6 +158,7 @@ Delete any from the list in case they drop support of web feeds.
 - posthaven
 - reddit
 - tumblr
+- vimeo
 - wordpress
 - youtube