diff --git a/tidal_dl_ng/helper/path.py b/tidal_dl_ng/helper/path.py
index fb7bb87..d9ff35c 100644
--- a/tidal_dl_ng/helper/path.py
+++ b/tidal_dl_ng/helper/path.py
@@ -160,11 +160,11 @@ def format_str_media(name: str, media: Track | Album | Playlist | UserPlaylist |
             case "track_volume_num_optional":
                 if isinstance(media, Track | Video):
                     num_volumes: int = media.album.num_volumes if hasattr(media, "album") else 1
-                    result = "" if media.volume_num is num_volumes else str(media.volume_num)
+                    result = "" if num_volumes is 1 else str(media.volume_num)
             case "track_volume_num_optional_CD":
                 if isinstance(media, Track | Video):
                     num_volumes: int = media.album.num_volumes if hasattr(media, "album") else 1
-                    result = "" if media.volume_num is num_volumes else f"CD{media.volume_num!s}"
+                    result = "" if num_volumes is 1 else f"CD{media.volume_num!s}"
     except Exception as e:
         # TODO: Implement better exception logging.
         print(e)