diff --git a/module/time/auto-adjust-darkness.js b/module/time/auto-adjust-darkness.js
index c7b320e8..ec5e59d7 100644
--- a/module/time/auto-adjust-darkness.js
+++ b/module/time/auto-adjust-darkness.js
@@ -15,7 +15,7 @@ export class AutoAdjustDarkness {
   }
 
   static async adjust(darkness) {
-    if (AutoAdjustDarkness.isAuto()) {
+    if (game.user.isGM && AutoAdjustDarkness.isAuto()) {
       const scene = game.scenes.viewed;
       if (scene?.environment?.globalLight?.enabled && scene?.tokenVision) {
         await scene.update({ darkness });