diff --git a/css/css-ui/appearance-menulist-button-002.html b/css/css-ui/appearance-menulist-button-002.html
index 0477f2d52ef16a..60a4312b16cdc0 100644
--- a/css/css-ui/appearance-menulist-button-002.html
+++ b/css/css-ui/appearance-menulist-button-002.html
@@ -6,7 +6,7 @@
 <link rel="mismatch" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
- #container > #drop-down-select { -webkit-appearance: none; -webkit-appearance: menulist-button; }
+ #container > #drop-down-select { appearance: none; appearance: menulist-button; }
 </style>
 <div id="container">
 	<a>a</a>
diff --git a/css/css-ui/webkit-appearance-menulist-button-002.html b/css/css-ui/webkit-appearance-menulist-button-002.html
index c8d61508d28fea..078d568faa1795 100644
--- a/css/css-ui/webkit-appearance-menulist-button-002.html
+++ b/css/css-ui/webkit-appearance-menulist-button-002.html
@@ -10,7 +10,7 @@
 <link rel="mismatch" href="appearance-auto-ref.html">
 <style>
  #container { width: 500px; }
- #container > #drop-down-select { -webkit--webkit-appearance: none; -webkit--webkit-appearance: menulist-button; }
+ #container > #drop-down-select { -webkit-appearance: none; -webkit-appearance: menulist-button; }
 </style>
 <div id="container">
 	<a>a</a>