diff --git a/css/css-multicol/parsing/column-rule-valid.html b/css/css-multicol/parsing/column-rule-valid.html
index 4743988f7d5217f..30da6380fcb09d0 100644
--- a/css/css-multicol/parsing/column-rule-valid.html
+++ b/css/css-multicol/parsing/column-rule-valid.html
@@ -16,6 +16,7 @@
 test_valid_value("column-rule", "red");
 
 test_valid_value("column-rule", "currentcolor hidden medium", "hidden");
+test_valid_value("column-rule", "currentcolor none medium", "medium");
 </script>
 </body>
 </html>