diff --git a/src/teilchensammler_cli/tui.py b/src/teilchensammler_cli/tui.py
index 03716c9..87ffa62 100644
--- a/src/teilchensammler_cli/tui.py
+++ b/src/teilchensammler_cli/tui.py
@@ -51,7 +51,7 @@ class SearchResults(Widget):
         table.add_rows(await load_initial_data())
 
 
-class AddInventoryScreen(Screen[None]):
+class AddInventoryScreen(Screen):
     def compose(self) -> ComposeResult:
         yield Header()
         yield SearchBar()