diff --git a/package.json b/package.json
index f002905..2e615b1 100644
--- a/package.json
+++ b/package.json
@@ -27,6 +27,7 @@
     "vue-gettext-compile": "./dist/bin/gettext_compile.js"
   },
   "scripts": {
+    "prepare": "npm run build",
     "docs": "vuepress dev docs",
     "docs:build": "vuepress build docs -d distDocs",
     "docs:extract": "node --loader ts-node/esm ./scripts/gettext_extract.ts",
diff --git a/scripts/embeddedJsExtractor.ts b/scripts/embeddedJsExtractor.ts
index a3c8ad9..c8b2a0b 100644
--- a/scripts/embeddedJsExtractor.ts
+++ b/scripts/embeddedJsExtractor.ts
@@ -18,8 +18,14 @@ const getElementContent = (element: Element | Template, options: IContentOptions
   // text nodes within template tags don't get serialized properly, this is a hack
   if (element.tagName === "template") {
     const docFragment = treeAdapter.createDocumentFragment();
-    (element as Template).content.childNodes.forEach((childNode: Node) => {
-      treeAdapter.appendChild(docFragment, childNode);
+    let childNodes
+    if (typeof (element as Template).content === "undefined") {
+        childNodes = (element as Template).childNodes
+    } else {
+        childNodes = (element as Template).content.childNodes
+    }
+    childNodes.forEach((childNode: Node) => {
+        treeAdapter.appendChild(docFragment, childNode);
     });
     content = serialize(docFragment, {});
   }