diff --git a/index.html b/index.html
index 8797162d..6c4b7e8b 100644
--- a/index.html
+++ b/index.html
@@ -84,23 +84,24 @@
         <label for="theme">Theme</label>
       </td><td>
         <select id="theme" size="1">
-          <option value="ace/theme/textmate">TextMate</option>
-          <option value="ace/theme/eclipse">Eclipse</option>
-          <option value="ace/theme/dawn">Dawn</option>
-          <option value="ace/theme/idle_fingers">idleFingers</option>
-          <option value="ace/theme/pastel_on_dark">Pastel on dark</option>
-          <option value="ace/theme/twilight">Twilight</option>
           <option value="ace/theme/clouds">Clouds</option>
           <option value="ace/theme/clouds_midnight">Clouds Midnight</option>
+          <option value="ace/theme/cobalt">Cobalt</option>
           <option value="ace/theme/crimson_editor">Crimson Editor</option>
+          <option value="ace/theme/dawn">Dawn</option>
+          <option value="ace/theme/eclipse">Eclipse</option>
+          <option value="ace/theme/idle_fingers">idleFingers</option>
           <option value="ace/theme/kr_theme">krTheme</option>
-          <option value="ace/theme/mono_industrial">Mono Industrial</option>
-          <option value="ace/theme/monokai">Monokai</option>
           <option value="ace/theme/merbivore">Merbivore</option>
           <option value="ace/theme/merbivore_soft">Merbivore Soft</option>
-          <option value="ace/theme/vibrant_ink">Vibrant Ink</option>
+          <option value="ace/theme/mono_industrial">Mono Industrial</option>
+          <option value="ace/theme/monokai">Monokai</option>
+          <option value="ace/theme/pastel_on_dark">Pastel on dark</option>
           <option value="ace/theme/solarized_dark">Solarized Dark</option>
           <option value="ace/theme/solarized_light">Solarized Light</option>
+          <option value="ace/theme/textmate">TextMate</option>
+          <option value="ace/theme/twilight">Twilight</option>
+          <option value="ace/theme/vibrant_ink">Vibrant Ink</option>
         </select>
       </td>
     </tr>