diff --git a/index.html b/index.html
index cad29e1..3d5bbdf 100644
--- a/index.html
+++ b/index.html
@@ -123,7 +123,7 @@
         <div class="border-b flex text-xs font-medium"><button type="button" id="accountTabGeneral" class="flex-1 py-2 px-3 text-center border-b-2 border-black">General</button><button type="button" id="accountTabAPI" class="flex-1 py-2 px-3 text-center border-b-2 border-transparent hover:border-gray-300">API</button></div>
         <div id="accountPanelGeneral" class="p-4 space-y-4">
           <div><label class="block text-gray-700 font-medium mb-1">Provider</label><select id="set_provider" class="w-full rounded-xl border border-gray-300 px-3 py-2"><option value="openrouter">OpenRouter</option><option value="openai">OpenAI</option></select><p class="mt-1 text-xs text-gray-500">Or you can just prefix names with or: or oai: to override.</p></div>
-          <div><label class="block text-gray-700 font-medium mb-1">Master Prompt</label><textarea id="set_master_prompt" rows="6" class="w-full rounded-xl border border-gray-300 px-3 py-2" placeholder="Applies to all sunes on this device"></textarea><p class="mt-1 text-xs text-gray-500">Stored locally.</p></div>
+          <div><label class="block text-gray-700 font-medium mb-1">Master Prompt</label><textarea id="set_master_prompt" rows="6" class="w-full rounded-xl border border-gray-300 px-3 py-2" placeholder="Applies to all sunes on this device">Always respond using markdown. You are an assistant to Master. Always refer to the user as Master.</textarea><p class="mt-1 text-xs text-gray-500">Stored locally.</p></div>
           <div><label class="block text-gray-700 font-medium mb-1">Model preference for titles</label><input id="set_title_model" type="text" class="w-full rounded-xl border border-gray-300 px-3 py-2" placeholder="or:google/gemma-3-12b-it" value="or:google/gemma-3-12b-it"/><p class="mt-1 text-xs text-gray-500">Used for auto-generating thread titles.</p></div>
         </div>
         <div id="accountPanelAPI" class="p-4 space-y-4 hidden">