diff --git a/locale/en-US/asciidoc.conf b/locale/en-US/asciidoc.conf
index 6393bccc..70eddf1e 100644
--- a/locale/en-US/asciidoc.conf
+++ b/locale/en-US/asciidoc.conf
@@ -62,6 +62,7 @@ HEADER=<div style="float: right; padding-top: 10px;"><form action="https://www.p
 [c]=command
 [m]=mapping
 [a]=argument
+# FIXME: this prevents all asciidoc attribute processing
 {|}=argument2
 # FIXME
 ((|))=#argument2