diff --git a/lib/chiya_web/components/layouts/root_public.html.heex b/lib/chiya_web/components/layouts/root_public.html.heex
index 4a47a2b..cb48a0e 100644
--- a/lib/chiya_web/components/layouts/root_public.html.heex
+++ b/lib/chiya_web/components/layouts/root_public.html.heex
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html lang="en" style="scrollbar-gutter: stable;">
+<html lang="en" style="scrollbar-gutter: stable;" data-theme={@settings.theme}>
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
