diff --git a/tubearchivist/home/src/index/video_constants.py b/tubearchivist/home/src/index/video_constants.py
index d5df23a..1b8dcd4 100644
--- a/tubearchivist/home/src/index/video_constants.py
+++ b/tubearchivist/home/src/index/video_constants.py
@@ -1,7 +1,12 @@
+"""video constants"""
+
 import enum
 
 
 class VideoTypeEnum(enum.Enum):
+    """all vid_type fields"""
+
     VIDEO = "video"
     LIVE = "live"
     SHORT = "short"
+    UNKNOWN = "unknown"