diff --git a/homeassistant/components/transmission/__init__.py b/homeassistant/components/transmission/__init__.py
index e0ced70f15e..40edc8aeab9 100644
--- a/homeassistant/components/transmission/__init__.py
+++ b/homeassistant/components/transmission/__init__.py
@@ -447,6 +447,8 @@ class TransmissionData:
 
     def stop_torrents(self):
         """Stop all active torrents."""
+        if len(self._torrents) == 0:
+            return
         torrent_ids = [torrent.id for torrent in self._torrents]
         self._api.stop_torrent(torrent_ids)