diff --git a/plextraktsync/trakt/TraktUserList.py b/plextraktsync/trakt/TraktUserList.py
index 72d150c152a..05a43ce67f8 100644
--- a/plextraktsync/trakt/TraktUserList.py
+++ b/plextraktsync/trakt/TraktUserList.py
@@ -100,6 +100,10 @@ def add(self, m: Media):
             # Already in the list
             return
 
+        if not self.keep_watched and m.plex.is_watched:
+            # Skip adding watched items
+            return
+
         self.logger.info(
             f"Adding {m.title_link} ({m.plex_key}) to Plex list {self.title_link}",
             extra={"markup": True},