diff --git a/script.js b/script.js
index cb811b5..3582f8b 100644
--- a/script.js
+++ b/script.js
@@ -6,6 +6,7 @@ document.addEventListener("DOMContentLoaded", () => {
     if(bodies.length === 1) {
         let body = bodies[0];
         let cast = document.createElement("button");
+        body.appendChild(cast);
         let cjs = new Castjs();
         cast.addEventListener("click", () => {
             if(cjs.available) {