diff --git a/src/Analyzers/MSTest.Analyzers/RoslynAnalyzerHelpers/DiagnosticExtensions.cs b/src/Analyzers/MSTest.Analyzers/RoslynAnalyzerHelpers/DiagnosticExtensions.cs
index a83e870acc..d5e5134011 100644
--- a/src/Analyzers/MSTest.Analyzers/RoslynAnalyzerHelpers/DiagnosticExtensions.cs
+++ b/src/Analyzers/MSTest.Analyzers/RoslynAnalyzerHelpers/DiagnosticExtensions.cs
@@ -8,7 +8,7 @@
 
 namespace Analyzer.Utilities.Extensions;
 
-internal static class FixtureUtils
+internal static class DiagnosticExtensions
 {
     public static Diagnostic CreateDiagnostic(
         this SyntaxNode node,