diff --git a/assets/js/theme.js b/assets/js/theme.js
index 07a7fe248000..7a09310f256f 100644
--- a/assets/js/theme.js
+++ b/assets/js/theme.js
@@ -201,11 +201,11 @@ let transTheme = () => {
   }, 500);
 };
 
-// Determine the expected state of the theme toggle, which can be "dark" or "light". Default is "light".
+// Determine the expected state of the theme toggle, which can be "dark" or "light". Default is "dark".
 let determineThemeSetting = () => {
   let themeSetting = localStorage.getItem("theme");
   if (themeSetting != "dark" && themeSetting != "light") {
-    themeSetting = "light";
+    themeSetting = "dark";
   }
   return themeSetting;
 };