diff --git a/packages/core/src/Editor.ts b/packages/core/src/Editor.ts
index e99813e0..c71ffb5c 100644
--- a/packages/core/src/Editor.ts
+++ b/packages/core/src/Editor.ts
@@ -397,7 +397,7 @@ export class Editor extends EventEmitter {
    * Get the document as HTML.
    */
   public getHTML(): string {
-    return getHTMLFromFragment(this.state.doc, this.schema)
+    return getHTMLFromFragment(this.state.doc.content, this.schema)
   }
 
   /**
diff --git a/packages/core/src/helpers/generateHTML.ts b/packages/core/src/helpers/generateHTML.ts
index 993ff7e7..75df2dec 100644
--- a/packages/core/src/helpers/generateHTML.ts
+++ b/packages/core/src/helpers/generateHTML.ts
@@ -7,5 +7,5 @@ export default function generateHTML(doc: JSONContent, extensions: Extensions):
   const schema = getSchema(extensions)
   const contentNode = Node.fromJSON(schema, doc)
 
-  return getHTMLFromFragment(contentNode, schema)
+  return getHTMLFromFragment(contentNode.content, schema)
 }
diff --git a/packages/core/src/helpers/getHTMLFromFragment.ts b/packages/core/src/helpers/getHTMLFromFragment.ts
index f2a6659d..547967c3 100644
--- a/packages/core/src/helpers/getHTMLFromFragment.ts
+++ b/packages/core/src/helpers/getHTMLFromFragment.ts
@@ -1,13 +1,13 @@
-import { Node, DOMSerializer, Schema } from 'prosemirror-model'
+import { DOMSerializer, Schema, Fragment } from 'prosemirror-model'
 
-export default function getHTMLFromFragment(doc: Node, schema: Schema): string {
-  const fragment = DOMSerializer
+export default function getHTMLFromFragment(fragment: Fragment, schema: Schema): string {
+  const documentFragment = DOMSerializer
     .fromSchema(schema)
-    .serializeFragment(doc.content)
+    .serializeFragment(fragment)
 
   const temporaryDocument = document.implementation.createHTMLDocument()
   const container = temporaryDocument.createElement('div')
-  container.appendChild(fragment)
+  container.appendChild(documentFragment)
 
   return container.innerHTML
 }