diff --git a/UndertaleModTool/Converters/CodeViewConverter.cs b/UndertaleModTool/Converters/CodeViewConverter.cs
index 04e77b669..80c722031 100644
--- a/UndertaleModTool/Converters/CodeViewConverter.cs
+++ b/UndertaleModTool/Converters/CodeViewConverter.cs
@@ -14,7 +14,7 @@ protected override Predicate<object> CreateFilter()
             return (obj) =>
             {
                 if (obj is UndertaleCode code &&
-                    code.ParentEntry != null &&
+                    code.ParentEntry is not null &&
                     Settings.Instance.HideChildCodeEntries)
                     return false;
                 return baseFilter(obj);
diff --git a/UndertaleModTool/Converters/FilteredViewConverter.cs b/UndertaleModTool/Converters/FilteredViewConverter.cs
index 73320d566..465217f14 100644
--- a/UndertaleModTool/Converters/FilteredViewConverter.cs
+++ b/UndertaleModTool/Converters/FilteredViewConverter.cs
@@ -45,7 +45,7 @@ protected virtual Predicate<object> CreateFilter()
 
         public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
         {
-            if (value == null)
+            if (value is null)
                 return null;
             ICollectionView filteredView = CollectionViewSource.GetDefaultView(value);
             filteredView.Filter = CreateFilter();