diff --git a/module/sla-npc-director.mjs b/module/sla-npc-director.mjs
index 90953f7..7b7d0ae 100644
--- a/module/sla-npc-director.mjs
+++ b/module/sla-npc-director.mjs
@@ -123,6 +123,7 @@ class SlaNpcDirectorApp extends FormApplication {
 }
 
 function appendOpenButton(root, selector, className, label) {
+  if (!game.user?.isGM) return false;
   const header = root?.querySelector(selector);
   if (!header || header.querySelector(`.${className}`)) return false;
   const button = document.createElement("button");