diff --git a/backend/app/routers/ingest.py b/backend/app/routers/ingest.py
index 63dee14..deb4495 100644
--- a/backend/app/routers/ingest.py
+++ b/backend/app/routers/ingest.py
@@ -59,7 +59,7 @@ async def ingest_document(file: UploadFile = File(...)):
         if not chunks:
             raise HTTPException(status_code=400, detail="Document appears to be empty or could not be parsed")
 
-        metadata = extract_metadata(temp_path, chunks)
+        metadata = extract_metadata(temp_path, chunks, original_filename=filename)
 
         rag = RAGService(settings=settings)
         document_id = rag.ingest_document(temp_path, chunks, metadata)
diff --git a/backend/app/utils/metadata.py b/backend/app/utils/metadata.py
index 1bef64c..4eaabb0 100644
--- a/backend/app/utils/metadata.py
+++ b/backend/app/utils/metadata.py
@@ -5,11 +5,11 @@ from datetime import datetime
 from typing import List, Dict, Any
 
 
-def extract_metadata(file_path: str, chunks: List[str]) -> List[Dict[str, Any]]:
+def extract_metadata(file_path: str, chunks: List[str], original_filename: str | None = None) -> List[Dict[str, Any]]:
     """Extract metadata for a list of text chunks.
 
     For each chunk, create a metadata dictionary containing:
-    - filename: basename of the provided file_path
+    - filename: basename of the provided file_path (or original_filename if provided)
     - upload_date: ISO 8601 timestamp of when metadata was generated
     - content_summary: first 200 characters of the chunk (or full chunk if shorter)
     - chunk_index: 0-based index of the chunk
@@ -17,6 +17,8 @@ def extract_metadata(file_path: str, chunks: List[str]) -> List[Dict[str, Any]]:
     Args:
         file_path: Path to the file associated with the chunks.
         chunks: List of string chunks to generate metadata for.
+        original_filename: Override filename stored in metadata when file_path
+            is a temp file.
 
     Returns:
         A list of metadata dictionaries, one per chunk. If chunks is empty, returns an empty list.
@@ -33,7 +35,7 @@ def extract_metadata(file_path: str, chunks: List[str]) -> List[Dict[str, Any]]:
     if not os.path.exists(file_path):
         raise FileNotFoundError(f"File not found: {file_path}")
 
-    filename = os.path.basename(file_path)
+    filename = original_filename if original_filename else os.path.basename(file_path)
     upload_date = datetime.now().isoformat()
 
     metadata: List[Dict[str, Any]] = []