diff --git a/sandbox.mdwn b/sandbox.mdwn
index 80dd6a4d7f5b1ffdc631ce060eb62efce79dc0ce..b3182dd04addae34ffddb37670d579464177ceb5 100644
--- a/sandbox.mdwn
+++ b/sandbox.mdwn
@@ -9,7 +9,7 @@ Here's another one with *emphasised* text.
 # Header
 
 ## Subheader
-<a id="test">
+<a id="test"></a>
 > This is a blockquote.
 >
 > This is the first level of quoting.