diff --git a/my_app/helper/file_naming.py b/my_app/helper/file_naming.py
index 4658428..de5a12b 100644
--- a/my_app/helper/file_naming.py
+++ b/my_app/helper/file_naming.py
@@ -7,7 +7,13 @@
 def file_retitling(original_file_url: str, folder_suffix: str, name: str) -> dict:
 	"""
 	Renames the uploaded video filename using the generated name for that video_info record,
-	and returns file metadata as a dictionary.
+	moves it into a sub-folder, and returns file metadata as a dictionary.
+
+	Also updates the Frappe File doctype record so that Frappe's internal file
+	management stays in sync with the new physical location. Without this step,
+	the old File record retains the original (now broken) file_url, causing
+	Frappe to treat the attachment as missing and potentially re-upload the file
+	on the next save — resulting in duplicate entries under /files/original/.
 
 	Args:
 	    original_file_url (str): The URL to the original uploaded file (e.g., /files/sample123.mp4).
@@ -39,6 +45,16 @@ def file_retitling(original_file_url: str, folder_suffix: str, name: str) -> dic
 
 	new_file_url_doc = f"/files/{folder_suffix}/{new_filename}"
 
+	# Sync the Frappe File doctype record to the new location.
+	# shutil.move() updates only the physical file; without updating the File
+	# record, Frappe still holds a reference to the old (now missing) path.
+	# On the next document save Frappe may re-upload the file, producing a
+	# duplicate entry in /files/original/.
+	file_doc_name = frappe.db.get_value("File", {"file_url": original_file_url}, "name")
+	if file_doc_name:
+		frappe.db.set_value("File", file_doc_name, "file_url", new_file_url_doc)
+		frappe.db.commit()
+
 	file_info = {
 		"original_filename": original_filename,
 		"original_filepath": original_path,