diff --git a/doc/theming/styled/DarkModeToggleDoc.vue b/doc/theming/styled/DarkModeToggleDoc.vue
index 10594c08d..8623685dc 100644
--- a/doc/theming/styled/DarkModeToggleDoc.vue
+++ b/doc/theming/styled/DarkModeToggleDoc.vue
@@ -32,7 +32,7 @@ app.use(PrimeVue, {
         base: PrimeOne,
         preset: Aura,
         options: {
-            darkModeSelector: 'my-app-dark',
+            darkModeSelector: '.my-app-dark',
         }
     }
  });