diff --git a/GFramework.SourceGenerators.Tests/Config/SchemaGeneratorTestDriver.cs b/GFramework.SourceGenerators.Tests/Config/SchemaGeneratorTestDriver.cs
index 0c33647..4da9519 100644
--- a/GFramework.SourceGenerators.Tests/Config/SchemaGeneratorTestDriver.cs
+++ b/GFramework.SourceGenerators.Tests/Config/SchemaGeneratorTestDriver.cs
@@ -1,6 +1,7 @@
 using System.Collections.Immutable;
 using System.IO;
 using GFramework.SourceGenerators.Config;
+using Microsoft.CodeAnalysis.CSharp;
 
 namespace GFramework.SourceGenerators.Tests.Config;