diff --git a/app/assets/javascripts/discourse/app/pre-initializers/discourse-bootstrap.js b/app/assets/javascripts/discourse/app/pre-initializers/discourse-bootstrap.js
index 17de813fe6e..78b9dc698d2 100644
--- a/app/assets/javascripts/discourse/app/pre-initializers/discourse-bootstrap.js
+++ b/app/assets/javascripts/discourse/app/pre-initializers/discourse-bootstrap.js
@@ -70,9 +70,8 @@ export default {
     }
 
     session.darkModeAvailable =
-      document.head.querySelectorAll(
-        'link[media="(prefers-color-scheme: dark)"]'
-      ).length > 0;
+      document.querySelectorAll('link[media="(prefers-color-scheme: dark)"]')
+        .length > 0;
 
     session.defaultColorSchemeIsDark = setupData.colorSchemeIsDark === "true";