diff --git a/Elwig/Helpers/ControlUtils.cs b/Elwig/Helpers/ControlUtils.cs
index fcc014b..de449c4 100644
--- a/Elwig/Helpers/ControlUtils.cs
+++ b/Elwig/Helpers/ControlUtils.cs
@@ -183,10 +183,10 @@ namespace Elwig.Helpers {
             } else {
                 input.SelectedItem = GetItemFromSource(input.ItemsSource, (int)hash);
             }
-            if (input is ListBox lb) {
-                lb.ScrollIntoView(lb.SelectedItem);
-            } else if (input is DataGrid dg) {
-                dg.ScrollIntoView(dg.SelectedItem);
+            if (input is ListBox lb && lb.SelectedItem is object lbItem) {
+                lb.ScrollIntoView(lbItem);
+            } else if (input is DataGrid dg && dg.SelectedItem is object dgItem) {
+                dg.ScrollIntoView(dgItem);
             }
         }