diff --git a/layout/reftests/bugs/315920-5.html b/layout/reftests/bugs/315920-5.html
index 11e9ffbde517..4eed25c8b7ef 100644
--- a/layout/reftests/bugs/315920-5.html
+++ b/layout/reftests/bugs/315920-5.html
@@ -2,8 +2,7 @@
 <html>
   <head>
     <style>
-      option {color: red}
-      option[selected] {color:green}
+      option {color: green}
       option[selected]:disabled ~ option:not([disabled]):not(:disabled) {color: red}
     </style>
   </head>
diff --git a/layout/reftests/bugs/reftest.list b/layout/reftests/bugs/reftest.list
index ad5e55acec26..a8ce8bf77b63 100644
--- a/layout/reftests/bugs/reftest.list
+++ b/layout/reftests/bugs/reftest.list
@@ -318,7 +318,7 @@ fails == 311366-unknown-block-3.html 311366-unknown-block-3-ref.html
 == 315920-3d.html 315920-3-ref.html
 != 315920-3e.html 315920-3-ref.html
 == 315920-4.html 315920-4-ref.html
-fails == 315920-5.html 315920-5-ref.html # bug 229915 ???
+== 315920-5.html 315920-5-ref.html
 == 315920-6.html 315920-6-ref.html
 == 315920-7a.html 315920-7-ref.html
 == 315920-7b.html 315920-7-ref.html
