diff --git a/doc/sandbox.mdwn b/doc/sandbox.mdwn
index 0a0cdf181..7dbe7919c 100644
--- a/doc/sandbox.mdwn
+++ b/doc/sandbox.mdwn
@@ -8,6 +8,8 @@ Here's a paragraph.
 
 Here's another one with *emphasised* text.
 
+do ë characters work?
+
 # Header
 
 ## Subheader