diff --git a/api/controllers/files/image_preview.py b/api/controllers/files/image_preview.py
index 5bb28b3897..9199069585 100644
--- a/api/controllers/files/image_preview.py
+++ b/api/controllers/files/image_preview.py
@@ -70,6 +70,20 @@ class FilePreviewApi(Resource):
             direct_passthrough=True,
             headers={},
         )
+        # add Accept-Ranges header for audio/video files
+        if upload_file.mime_type in [
+            "audio/mpeg",
+            "audio/wav",
+            "audio/mp4",
+            "audio/ogg",
+            "audio/flac",
+            "audio/aac",
+            "video/mp4",
+            "video/webm",
+            "video/quicktime",
+            "audio/x-m4a",
+        ]:
+            response.headers["Accept-Ranges"] = "bytes"
         if upload_file.size > 0:
             response.headers["Content-Length"] = str(upload_file.size)
         if args["as_attachment"]: