diff --git a/yt_shared/yt_shared/schemas/media.py b/yt_shared/yt_shared/schemas/media.py
index 186010a..0260b50 100644
--- a/yt_shared/yt_shared/schemas/media.py
+++ b/yt_shared/yt_shared/schemas/media.py
@@ -53,7 +53,7 @@ class Video(RealBaseModel):
     @root_validator(pre=False)
     def _set_fields(cls, values: dict) -> dict:
         if not values['thumb_name']:
-            values['thumb_name'] = f'{values["name"]}-thumb.jpg'
+            values['thumb_name'] = f'{values["filename"]}-thumb.jpg'
         return values