diff --git a/doc/sandbox/Test:_with_a_colon_in_its_name.mdwn b/doc/sandbox/Test:_with_a_colon_in_its_name.mdwn
new file mode 100644
index 000000000..b91d7cb03
--- /dev/null
+++ b/doc/sandbox/Test:_with_a_colon_in_its_name.mdwn
@@ -0,0 +1 @@
+what happens?