diff --git a/assets/js/darkmode.js b/assets/js/darkmode.js
index 4fb452c4..2bd61ff1 100644
--- a/assets/js/darkmode.js
+++ b/assets/js/darkmode.js
@@ -53,7 +53,7 @@
       let icon;
       let label;
       if (theme === AUTO_THEME) {
-        icon = 'brightness_auto';
+        icon = 'night_sight_auto';
         label = button.dataset.switchToLight;
       } else if (theme === LIGHT_THEME) {
         icon = 'light_mode';
diff --git a/layouts/partials/theme-toggle.html b/layouts/partials/theme-toggle.html
index 429eb755..17c80269 100644
--- a/layouts/partials/theme-toggle.html
+++ b/layouts/partials/theme-toggle.html
@@ -7,5 +7,5 @@
     data-switch-to-light="{{ T "theme.switch-to-light" }}"
     type="button"
 >
-    {{ partial "icon" "dark_mode" }}
+    {{ partial "icon" "night_sight_auto" }}
 </button>