index 2cd9baf..e6ea521 100644
--- a/src/elisp/treemacs-icons.el
+++ b/src/elisp/treemacs-icons.el
@@ -273,7 +273,7 @@ Necessary since root icons are not rectangular."
        (ht-set! tui-icons it tui-icon))))
 
 (treemacs-create-theme "Default"
-  :icon-directory (treemacs-join-path treemacs-dir "icons/default")
+  :icon-directory "@SITEETC@/icons/default"
   :config
   (progn
     ;; directory and other icons