diff --git a/src/HotChocolate/Skimmed/src/Skimmed/BuiltIns/BuiltIns.cs b/src/HotChocolate/Skimmed/src/Skimmed/BuiltIns/BuiltIns.cs
index cd5268f3a97..68aa2913219 100644
--- a/src/HotChocolate/Skimmed/src/Skimmed/BuiltIns/BuiltIns.cs
+++ b/src/HotChocolate/Skimmed/src/Skimmed/BuiltIns/BuiltIns.cs
@@ -140,7 +140,6 @@ public static bool IsBuiltInDirective(string name)
             Skip.Name => true,
             Deprecated.Name => true,
             SpecifiedBy.Name => true,
-            // SemanticNonNull.Name => true,
             _ => false
         };
 }
diff --git a/src/HotChocolate/Skimmed/src/Skimmed/BuiltIns/SemanticNonNullDirectiveDefinition.cs b/src/HotChocolate/Skimmed/src/Skimmed/BuiltIns/SemanticNonNullDirectiveDefinition.cs
index fd26b52aa23..7b7abea56e4 100644
--- a/src/HotChocolate/Skimmed/src/Skimmed/BuiltIns/SemanticNonNullDirectiveDefinition.cs
+++ b/src/HotChocolate/Skimmed/src/Skimmed/BuiltIns/SemanticNonNullDirectiveDefinition.cs
@@ -8,8 +8,6 @@ public sealed class SemanticNonNullDirectiveDefinition : DirectiveDefinition
     internal SemanticNonNullDirectiveDefinition(ScalarTypeDefinition intType)
         : base(BuiltIns.SemanticNonNull.Name)
     {
-        IsSpecDirective = true;
-
         var levelsArgument = new InputFieldDefinition(BuiltIns.SemanticNonNull.Levels, new ListTypeDefinition(intType));
         levelsArgument.DefaultValue = new ListValueNode(new IntValueNode(0));
         Arguments.Add(levelsArgument);