diff --git a/src/Shared/HandyControl_Shared/Controls/Input/CheckComboBox/CheckComboBox.cs b/src/Shared/HandyControl_Shared/Controls/Input/CheckComboBox/CheckComboBox.cs
index 208892c7..7a484da2 100644
--- a/src/Shared/HandyControl_Shared/Controls/Input/CheckComboBox/CheckComboBox.cs
+++ b/src/Shared/HandyControl_Shared/Controls/Input/CheckComboBox/CheckComboBox.cs
@@ -140,7 +140,7 @@ public class CheckComboBox : ListBox, IDataInput
         if (_selectAllItem != null)
         {
             _selectAllItem.Selected += SelectAllItem_Selected;
-            _selectAllItem.Unselected += SelectAllItem_Unselected; 
+            _selectAllItem.Unselected += SelectAllItem_Unselected;
         }
 
         UpdateTags();