diff --git a/src/Workspaces/Core/Portable/Utilities/NullableHelpers/NamedTypeSymbolWithNullableAnnotation.cs b/src/Workspaces/Core/Portable/Utilities/NullableHelpers/NamedTypeSymbolWithNullableAnnotation.cs
index 34a4fba1b770e8b3ed97fc9da5ab550dade4ae13..e1d6d22e6825e831319f8f2bcfceac96ccce2ae3 100644
--- a/src/Workspaces/Core/Portable/Utilities/NullableHelpers/NamedTypeSymbolWithNullableAnnotation.cs
+++ b/src/Workspaces/Core/Portable/Utilities/NullableHelpers/NamedTypeSymbolWithNullableAnnotation.cs
@@ -52,7 +52,7 @@ public override TResult Accept<TResult>(SymbolVisitor<TResult> visitor)
 
             public INamedTypeSymbol Construct(params ITypeSymbol[] typeArguments)
             {
-                return WrappedSymbol.Construct(typeArguments);
+                return WrappedSymbol.Construct(typeArguments).WithNullability(Nullability);
             }
 
             public INamedTypeSymbol ConstructUnboundGenericType()