diff --git a/JL.Windows/GUI/PopupWindow.xaml.cs b/JL.Windows/GUI/PopupWindow.xaml.cs
index f06cf2f9..1618d846 100644
--- a/JL.Windows/GUI/PopupWindow.xaml.cs
+++ b/JL.Windows/GUI/PopupWindow.xaml.cs
@@ -1231,10 +1231,11 @@ private async void PrimarySpelling_PreviewMouseUp(object sender, MouseButtonEven
         }
 
         string? selectedDefinitions = GetSelectedDefinitions(_listViewItemIndex);
+        int listViewItemIndex = _listViewItemIndex;
 
         HidePopup();
 
-        await PopupWindowUtils.Mine(LastLookupResults[_listViewItemIndex], _currentText, selectedDefinitions, _currentCharPosition).ConfigureAwait(false);
+        await PopupWindowUtils.Mine(LastLookupResults[listViewItemIndex], _currentText, selectedDefinitions, _currentCharPosition).ConfigureAwait(false);
     }
 
     private void ShowAddNameWindow()