diff --git a/doc/sandbox.mdwn b/doc/sandbox.mdwn
index 34d4c2c06..acf53e6a8 100644
--- a/doc/sandbox.mdwn
+++ b/doc/sandbox.mdwn
@@ -24,7 +24,8 @@ List:
 [[!meta date="Thu Jun 16 22:04:33 2005" updated="Thu Dec 22 01:23:20 2011"]]
 
 This is the [[SandBox]], a page anyone can edit to try out ikiwiki
-(version [[!version  ]]).
+(version [[!version  ]]). Ikiwiki described on Wikipedia: [[!wikipedia Ikiwiki]].
+
 vvvv
 CamelCase ?