diff --git a/src/controllers/dashboard/encodingsettings.html b/src/controllers/dashboard/encodingsettings.html
index d83d31445c..bf51ad8d74 100644
--- a/src/controllers/dashboard/encodingsettings.html
+++ b/src/controllers/dashboard/encodingsettings.html
@@ -297,6 +297,8 @@
                         <option value="None">${None}</option>
                         <option value="Dave750">Dave750</option>
                         <option value="NightmodeDialogue">NightmodeDialogue</option>
+                        <option value="Rfc7845">RFC7845</option>
+                        <option value="Ac4">AC-4</option>
                     </select>
                     <div class="fieldDescription">${StereoDownmixAlgorithmHelp}</div>
                 </div>