diff --git a/xml2rfc/data/xml2rfc.css b/xml2rfc/data/xml2rfc.css
index abbc48ca..7d06949c 100644
--- a/xml2rfc/data/xml2rfc.css
+++ b/xml2rfc/data/xml2rfc.css
@@ -1127,7 +1127,7 @@ section .olCompact {
 tt, code {
   background-color: transparent;
 }
-p tt, p code, li tt, li code {
+p tt, p code, li tt, li code, dt tt, dt code {
   background-color: #f8f8f8;
 }
 /* Tweak the pre margin -- 0px doesn't come out well */