diff --git a/app/models.py b/app/models.py
index 39a26c1..4407451 100644
--- a/app/models.py
+++ b/app/models.py
@@ -338,6 +338,7 @@ class Playlists(Base):
 
         self.loaded = True
         self.last_used = datetime.now()
+        session.commit()
 
     def remove_all_tracks(self, session: Session) -> None:
         """
diff --git a/test_playlists.py b/test_playlists.py
index 9594f32..0d27857 100644
--- a/test_playlists.py
+++ b/test_playlists.py
@@ -9,7 +9,7 @@ def test_init(qtbot, session):
     """Just check we can create a playlist_tab"""
 
     playlist = Playlists(session, "my playlist")
-    playlist_tab = PlaylistTab(None, session, playlist)
+    playlist_tab = PlaylistTab(None, session, playlist.id)
     assert playlist_tab
 
 
@@ -18,7 +18,7 @@ def test_save_and_restore(qtbot, session):
 
     # Create playlist
     playlist = Playlists(session, "my playlist")
-    playlist_tab = PlaylistTab(None, session, playlist)
+    playlist_tab = PlaylistTab(None, session, playlist.id)
 
     # Insert a note
     note_text = "my note"
@@ -46,7 +46,7 @@ def test_meta_all_clear(qtbot, session):
 
     # Create playlist
     playlist = Playlists(session, "my playlist")
-    playlist_tab = PlaylistTab(None, session, playlist)
+    playlist_tab = PlaylistTab(None, session, playlist.id)
 
     # Add some tracks
     track1_path = "/a/b/c"
@@ -70,7 +70,7 @@ def test_meta(qtbot, session):
 
     # Create playlist
     playlist = Playlists(session, "my playlist")
-    playlist_tab = PlaylistTab(None, session, playlist)
+    playlist_tab = PlaylistTab(None, session, playlist.id)
 
     # Add some tracks
     track1_path = "/a/b/c"
@@ -148,7 +148,7 @@ def test_meta(qtbot, session):
 def test_clear_next(qtbot, session):
     # Create playlist
     playlist = Playlists(session, "my playlist")
-    playlist_tab = PlaylistTab(None, session, playlist)
+    playlist_tab = PlaylistTab(None, session, playlist.id)
 
     # Add some tracks
     track1_path = "/a/b/c"
@@ -169,7 +169,7 @@ def test_get_selected_row(qtbot, session):
 
     # Create playlist
     playlist = Playlists(session, "my playlist")
-    playlist_tab = PlaylistTab(None, session, playlist)
+    playlist_tab = PlaylistTab(None, session, playlist.id)
 
     # Add some tracks
     track1_path = "/a/b/c"