diff --git a/src/Microsoft.OpenApi/Models/OpenApiReference.cs b/src/Microsoft.OpenApi/Models/OpenApiReference.cs
index 507401cd4..c055dd072 100644
--- a/src/Microsoft.OpenApi/Models/OpenApiReference.cs
+++ b/src/Microsoft.OpenApi/Models/OpenApiReference.cs
@@ -150,7 +150,7 @@ public OpenApiReference(OpenApiReference reference)
             ExternalResource = reference?.ExternalResource;
             Type = reference?.Type;
             Id = reference?.Id;
-            HostDocument = new(reference?.HostDocument);
+            HostDocument = reference?.HostDocument;
         }
 
         /// <summary>