diff --git a/api/core/docstore/dataset_docstore.py b/api/core/docstore/dataset_docstore.py
index 9a051fd4cb68d3..7567493b9f91ed 100644
--- a/api/core/docstore/dataset_docstore.py
+++ b/api/core/docstore/dataset_docstore.py
@@ -84,7 +84,7 @@ def add_documents(
             if not isinstance(doc, Document):
                 raise ValueError("doc must be a Document")
 
-            segment_document = self.get_document(doc_id=doc.metadata['doc_id'], raise_error=False)
+            segment_document = self.get_document_segment(doc_id=doc.metadata['doc_id'])
 
             # NOTE: doc could already exist in the store, but we overwrite it
             if not allow_update and segment_document: