diff --git a/src/mixins/setContent.js b/src/mixins/setContent.js
index addf6aee02c..2ccfa4c7b1b 100644
--- a/src/mixins/setContent.js
+++ b/src/mixins/setContent.js
@@ -34,7 +34,7 @@ export default {
 			const editor = createEditor({
 				enableRichEditing: isRichEditor,
 			})
-			const json = generateJSON(html, editor.extensionManager.extensions)
+			const json = generateJSON(html, editor.options.extensions)
 
 			const doc = Node.fromJSON(editor.schema, json)
 			const getBaseDoc = (doc) => {