diff --git a/doc/sandbox.mdwn b/doc/sandbox.mdwn
index 6dcba0ec0..fe26cea6b 100644
--- a/doc/sandbox.mdwn
+++ b/doc/sandbox.mdwn
@@ -1,5 +1,7 @@
 This is the SandBox, a page anyone can edit to try out this fab ikiwiki.
 
+foo
+
 # テスト。
 
 Test. Korean. 나는 한국인, 백두산,동해