diff --git a/docs/command-lines.md b/docs/command-lines.md
index f99c965..5f4b7fb 100644
--- a/docs/command-lines.md
+++ b/docs/command-lines.md
@@ -312,9 +312,11 @@ dotnet ef dbcontext scaffold "Filename=../Northwind.db" Microsoft.EntityFramewor
 
 Creating the EF Core model for the Northwind database:
 ```
-dotnet ef dbcontext scaffold "Data Source=.;Initial Catalog=Northwind;Integrated Security=true;" Microsoft.EntityFrameworkCore.SqlServer --namespace Packt.Shared --data-annotations
+dotnet ef dbcontext scaffold "Data Source=.;Initial Catalog=Northwind;Integrated Security=true;TrustServerCertificate=true;" Microsoft.EntityFrameworkCore.SqlServer --namespace Packt.Shared --data-annotations
 ```
 
+> If you do not have a "full" edition of SQL Server installed with a default instance then you will need to changed the `.` to the correct `servername\instancename`.
+
 # Chapter 13 - Building Websites Using ASP.NET Core Razor Pages
 
 ## Page 564 - Testing and securing the website