diff --git a/Directory.Build.props b/Directory.Build.props
index 82e429e..96447a8 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project>
   <PropertyGroup>
-    <Version>2025.12.17.0</Version>
+    <Version>2025.12.23.0</Version>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <LangVersion>preview</LangVersion>
diff --git a/src/libraries/TedToolkit.RoslynHelper/Names/BaseName.cs b/src/libraries/TedToolkit.RoslynHelper/Names/BaseName.cs
index e8961f2..46ab840 100644
--- a/src/libraries/TedToolkit.RoslynHelper/Names/BaseName.cs
+++ b/src/libraries/TedToolkit.RoslynHelper/Names/BaseName.cs
@@ -16,8 +16,7 @@ private protected BaseName(T symbol)
         Symbol = symbol;
         _lazyFullName = new Lazy<string>(() => symbol.ToDisplayString(SymbolDisplayFormat.FullyQualifiedFormat));
         _lazyFullNameNull = new Lazy<string>(() => symbol.ToDisplayString(SymbolDisplayFormat.FullyQualifiedFormat
-            .WithMiscellaneousOptions(SymbolDisplayMiscellaneousOptions.IncludeNullableReferenceTypeModifier |
-                                      SymbolDisplayMiscellaneousOptions.ExpandNullable)));
+            .WithMiscellaneousOptions(SymbolDisplayMiscellaneousOptions.IncludeNullableReferenceTypeModifier)));
         _lazyFullNameNoGlobal = new Lazy<string>(() => symbol.ToDisplayString(SymbolDisplayFormat.FullyQualifiedFormat
             .WithGlobalNamespaceStyle(SymbolDisplayGlobalNamespaceStyle.Omitted)));
         _lazyMiniName = new Lazy<string>(() => symbol.ToDisplayString(SymbolDisplayFormat.MinimallyQualifiedFormat));
diff --git a/src/libraries/TedToolkit.RoslynHelper/Names/ParameterName.cs b/src/libraries/TedToolkit.RoslynHelper/Names/ParameterName.cs
index 1d7017d..bb2c0f7 100644
--- a/src/libraries/TedToolkit.RoslynHelper/Names/ParameterName.cs
+++ b/src/libraries/TedToolkit.RoslynHelper/Names/ParameterName.cs
@@ -88,9 +88,11 @@ public ParameterSyntax ParameterSyntax
         var type = parameter.Type;
 
         if (value == null)
-            return type.IsReferenceType
-                ? LiteralExpression(SyntaxKind.NullLiteralExpression)
-                : LiteralExpression(SyntaxKind.DefaultLiteralExpression);
+        {
+            return type.IsValueType
+                ? LiteralExpression(SyntaxKind.DefaultLiteralExpression)
+                : LiteralExpression(SyntaxKind.NullLiteralExpression);
+        }
 
         switch (type.SpecialType)
         {