diff --git a/my/grouvee/export.py b/my/grouvee/export.py
index 3b500ea7..ecb07494 100644
--- a/my/grouvee/export.py
+++ b/my/grouvee/export.py
@@ -40,7 +40,7 @@ def games() -> Iterator[G.Game]:
 
 def _filter_games_for_shelf(name: str) -> Iterator[G.Game]:
     for game in games():
-        if name in [s.name for s in game.shelves]:
+        if name in (s.name for s in game.shelves):
             yield game