diff --git a/comet/api/endpoints/stream.py b/comet/api/endpoints/stream.py
index 2a4e880..382b3b8 100644
--- a/comet/api/endpoints/stream.py
+++ b/comet/api/endpoints/stream.py
@@ -466,7 +466,7 @@ async def stream(
                 if torrent["fileIndex"] is not None:
                     the_stream["fileIdx"] = torrent["fileIndex"]
 
-                if len(torrent["sources"]) == 0:
+                if not torrent["sources"]:
                     the_stream["sources"] = trackers
                 else:
                     the_stream["sources"] = torrent["sources"]
diff --git a/comet/scrapers/aiostreams.py b/comet/scrapers/aiostreams.py
index 9ac48e3..79736f8 100644
--- a/comet/scrapers/aiostreams.py
+++ b/comet/scrapers/aiostreams.py
@@ -48,7 +48,7 @@ class AiostreamsScraper(BaseScraper):
                         "seeders": torrent.get("seeders", None),
                         "size": torrent["size"],
                         "tracker": tracker,
-                        "sources": torrent.get("sources", []),
+                        "sources": torrent.get("sources") or [],
                     }
                 )
         except Exception as e: