diff --git a/app/modules/themoviedb/tmdb_cache.py b/app/modules/themoviedb/tmdb_cache.py
index 3cffba78..cda15053 100644
--- a/app/modules/themoviedb/tmdb_cache.py
+++ b/app/modules/themoviedb/tmdb_cache.py
@@ -48,7 +48,7 @@ class TmdbCache(metaclass=Singleton):
         """
         获取缓存KEY
         """
-        return f"[{meta.type.value}]{meta.get_name()}-{meta.year}-{meta.begin_season}"
+        return f"[{meta.type.value if meta.type else '未知'}]{meta.get_name()}-{meta.year}-{meta.begin_season}"
 
     def get(self, meta: MetaBase):
         """