diff --git a/private_gpt/components/ingest/ingest_helper.py b/private_gpt/components/ingest/ingest_helper.py
index 8521ea07..45adbba8 100644
--- a/private_gpt/components/ingest/ingest_helper.py
+++ b/private_gpt/components/ingest/ingest_helper.py
@@ -143,7 +143,7 @@ class IngestionHelper:
                     # )[0]
                     # doc.metadata["page_label"] = str(i + 1)
 
-                    documents.extend([doc])
+                    documents.extend(doc)
             except Exception as e:
                 logger.error(f"Error extracting images from PDF: {e}")
                 raise ValueError(f"No text extracted from PDF={file_name}")