diff --git a/index.html b/index.html
index 928a423..fdb6b46 100644
--- a/index.html
+++ b/index.html
@@ -474,6 +474,7 @@
 				<input type="hidden" name="_replyto" value="noreply@flame.ga" />
 				<textarea name="body" rows="7" placeholder="Your message" required></textarea>
 				<input type="text" name="_gotcha" class="hide" />
+				<input type="text" name="_format" value="plain" class="hide" />
 				<input type="hidden" name="_next" value="/sent"/>
 				<button type="submit">Send</button>
 			</form>