diff --git a/themes/chameleon/layout/_partial/after-footer.ejs b/themes/chameleon/layout/_partial/after-footer.ejs
index 6085256..2b8ee81 100644
--- a/themes/chameleon/layout/_partial/after-footer.ejs
+++ b/themes/chameleon/layout/_partial/after-footer.ejs
@@ -1,5 +1,8 @@
 <% if (is_post()) { %>
-<%- js({ src: '/libs/clipboard.js/2.0.4/clipboard.min.js', 'data-sri-fallback': '/js/clipboard.min.js', integrity: 'sha384-8CYhPwYlLELodlcQV713V9ZikA3DlCVaXFDpjHfP8Z36gpddf/Vrt47XmKDsCttu', crossorigin: 'anonymous', defer: true}) %>
+<%- js([
+  { src: '/libs/clipboard.js/2.0.4/clipboard.min.js', 'data-sri-fallback': '/js/clipboard.min.js', integrity: 'sha384-8CYhPwYlLELodlcQV713V9ZikA3DlCVaXFDpjHfP8Z36gpddf/Vrt47XmKDsCttu', crossorigin: 'anonymous', defer: true },
+  '/js/copy-button.js'
+  ]) %>
 <% } %>
 
 <%/* javascript of Chameleon theme */%>
diff --git a/themes/chameleon/source/js/chameleon.js b/themes/chameleon/source/js/chameleon.js
index 75cc3e8..f5be359 100644
--- a/themes/chameleon/source/js/chameleon.js
+++ b/themes/chameleon/source/js/chameleon.js
@@ -6,34 +6,3 @@ document.getElementById('searchClick').addEventListener('click', () => {
 document.getElementById('searchClickMob').addEventListener('click', () => {
   searchFormMob.submit()
 }, false)
-
-/*
-* Copy button
-* Following functions only execute after
-* the 'document' is ready or
-* <script src> is executed.
-*/
-document.addEventListener('DOMContentLoaded', () => {
-
-  // Copy button
-  const copyCode = new ClipboardJS('.copy-button', {
-    target: (trigger) => {
-      return trigger.previousElementSibling
-    }
-  })
-
-  copyCode.on('success', (event) => {
-    event.clearSelection()
-    event.trigger.textContent = 'Copied'
-    window.setTimeout(() => {
-      event.trigger.textContent = 'Copy'
-    }, 2000)
-  })
-
-  copyCode.on('error', (event) => {
-    event.trigger.textContent = 'Press "Ctrl + C" to copy'
-    window.setTimeout(() => {
-      event.trigger.textContent = 'Copy'
-    }, 2000)
-  })
-}, false)
diff --git a/themes/chameleon/source/js/copy-button.js b/themes/chameleon/source/js/copy-button.js
new file mode 100644
index 0000000..fab368b
--- /dev/null
+++ b/themes/chameleon/source/js/copy-button.js
@@ -0,0 +1,29 @@
+/*
+* Copy button
+* Following functions only execute after
+* the 'document' is ready or
+* <script src> is executed.
+*/
+document.addEventListener('DOMContentLoaded', () => {
+  // Copy button
+  const copyCode = new ClipboardJS('.copy-button', {
+    target: (trigger) => {
+      return trigger.previousElementSibling
+    }
+  })
+
+  copyCode.on('success', (event) => {
+    event.clearSelection()
+    event.trigger.textContent = 'Copied'
+    window.setTimeout(() => {
+      event.trigger.textContent = 'Copy'
+    }, 2000)
+  })
+
+  copyCode.on('error', (event) => {
+    event.trigger.textContent = 'Press "Ctrl + C" to copy'
+    window.setTimeout(() => {
+      event.trigger.textContent = 'Copy'
+    }, 2000)
+  })
+}, false)