diff --git a/doc/sidebar.mdwn b/doc/sidebar.mdwn
index 17db401fa6..ea11991a69 100644
--- a/doc/sidebar.mdwn
+++ b/doc/sidebar.mdwn
@@ -9,4 +9,4 @@
 * [[forum]]
 * [[comments]]
 * [[contact]]
-* <a href="http://flattr.com/thing/84843/git-annex"><img src="https://api.flattr.com/button/flattr-badge-large.png" alt="Flattr this" title="Flattr this" /></a>
+* [Flattr this](http://flattr.com/thing/84843/git-annex)