diff --git a/website/src/pages/index.astro b/website/src/pages/index.astro
index aa9a224..d4eeb4a 100644
--- a/website/src/pages/index.astro
+++ b/website/src/pages/index.astro
@@ -197,21 +197,26 @@ const terminalCommands = [
 </Layout>
 
 <script is:inline>
-  ;(function () {
+  function initCopyBtn() {
     var btn = document.getElementById("install-cmd")
-    if (btn) btn.addEventListener("click", function () {
-      navigator.clipboard.writeText("curl -fsSL https://feynman.is/install | bash").then(function () {
-        var copyIcon = document.getElementById("copy-icon")
-        var checkIcon = document.getElementById("check-icon")
-        copyIcon.classList.add("hidden")
-        checkIcon.classList.remove("hidden")
-        setTimeout(function () {
-          copyIcon.classList.remove("hidden")
-          checkIcon.classList.add("hidden")
-        }, 2000)
+    if (btn && !btn._bound) {
+      btn._bound = true
+      btn.addEventListener("click", function () {
+        navigator.clipboard.writeText("curl -fsSL https://feynman.is/install | bash").then(function () {
+          var copyIcon = document.getElementById("copy-icon")
+          var checkIcon = document.getElementById("check-icon")
+          copyIcon.classList.add("hidden")
+          checkIcon.classList.remove("hidden")
+          setTimeout(function () {
+            copyIcon.classList.remove("hidden")
+            checkIcon.classList.add("hidden")
+          }, 2000)
+        })
       })
-    })
-  })()
+    }
+  }
+  initCopyBtn()
+  document.addEventListener("astro:after-swap", initCopyBtn)
 
   fetch("https://api.github.com/repos/getcompanion-ai/feynman")
     .then(function(r) { return r.json() })