diff --git a/docs/ref/contrib/admin/index.txt b/docs/ref/contrib/admin/index.txt
index 6c3682638c..2206bc0968 100644
--- a/docs/ref/contrib/admin/index.txt
+++ b/docs/ref/contrib/admin/index.txt
@@ -2780,7 +2780,7 @@ template override to your project:
 
     {% block extrastyle %}{{ block.super }}
     <style>
-    :root {
+    html[data-theme="light"], :root {
       --primary: #9774d5;
       --secondary: #785cab;
       --link-fg: #7c449b;