diff --git a/plextraktsync/media.py b/plextraktsync/media.py
index 1a8ac8539eb..5314d2ba7f1 100644
--- a/plextraktsync/media.py
+++ b/plextraktsync/media.py
@@ -284,6 +284,9 @@ def resolve_trakt(self, tm: TraktItem) -> Media:
         """Find Plex media from Trakt id using Plex Search and Discover"""
         result = self.plex.search_online(tm.item.title, tm.type)
         pm = self._guid_match(result, tm)
+        if pm is None:
+            logger.warning(f"Skipping '{tm.item.title}': not found on Plex Discover")
+            return None
         return self.make_media(pm, tm.item)
 
     def make_media(self, plex: PlexLibraryItem, trakt):
diff --git a/plextraktsync/sync.py b/plextraktsync/sync.py
index ed22dedc0f6..e66d9865c0f 100644
--- a/plextraktsync/sync.py
+++ b/plextraktsync/sync.py
@@ -91,9 +91,10 @@ def sync(self, walker: Walker, dry_run=False):
                         sync_items.append(tm)
                         remaining_movies_ids.remove(tm.trakt)
                 for movie in walker.media_from_traktlist(sync_items, title="Trakt watched movies"):
-                    self.sync_watched(movie, dry_run=dry_run)
-                    # Rating medias from Plex Discover not implemented yet https://github.com/pkkid/python-plexapi/issues/1137
-                    # self.sync_ratings(movie, dry_run=dry_run)
+                    if movie is not None:
+                        self.sync_watched(movie, dry_run=dry_run)
+                        # Rating medias from Plex Discover not implemented yet https://github.com/pkkid/python-plexapi/issues/1137
+                        # self.sync_ratings(movie, dry_run=dry_run)
 
             shows = set()
             episode_trakt_ids = set()