diff --git a/docling/pipeline/vlm_pipeline.py b/docling/pipeline/vlm_pipeline.py
index 9a7b51eb..0e51332c 100644
--- a/docling/pipeline/vlm_pipeline.py
+++ b/docling/pipeline/vlm_pipeline.py
@@ -3,7 +3,7 @@ from io import BytesIO
 from pathlib import Path
 from typing import List, Optional, Union, cast
 
-# from docling_core.types import DoclingDocument
+from docling_core.types import DoclingDocument
 from docling_core.types.doc import BoundingBox, DocItem, ImageRef, PictureItem, TextItem
 from docling_core.types.doc.document import DocTagsDocument
 from PIL import Image as PILImage
@@ -133,7 +133,7 @@ class VlmPipeline(PaginatedPipeline):
                 doctags_doc = DocTagsDocument.from_doctags_and_image_pairs(
                     doctags_list_c, image_list_c
                 )
-                conv_res.document.load_from_doctags(doctags_doc)
+                conv_res.document = DoclingDocument.load_from_doctags(doctags_doc)
 
                 # If forced backend text, replace model predicted text with backend one
                 if page.size: