diff --git a/app/playlists.py b/app/playlists.py
index d0f7a95..70293f1 100644
--- a/app/playlists.py
+++ b/app/playlists.py
@@ -270,7 +270,7 @@ class PlaylistTab(QTableWidget):
                     plr_id = self._get_playlistrow_id(row_number)
                     plr = session.get(PlaylistRows, plr_id)
                     track_id = plr.track_id
-                    track_row = track_id > 0
+                    track_row = track_id is not None
                     header_row = not track_row
                     if track_row:
                         current = (
@@ -1258,7 +1258,7 @@ class PlaylistTab(QTableWidget):
             _ = self._set_item_text(row, ROW_NOTES, plr.note)
 
             start_gap_item = self._set_item_text(row, START_GAP,
-                                                 track.start_gap)
+                                                 str(track.start_gap))
             if track.start_gap and track.start_gap >= 500:
                 start_gap_item.setBackground(QColor(Config.COLOUR_LONG_START))