diff --git a/src/Features/CSharp/Portable/UseIndexOrRangeOperator/CSharpUseIndexOperatorDiagnosticAnalyzer.cs b/src/Features/CSharp/Portable/UseIndexOrRangeOperator/CSharpUseIndexOperatorDiagnosticAnalyzer.cs
index 6d42af1f0dbb56b8166877d3da3b204b809c61c0..2d6102c323fc99360433355ca6ae0cad3392dee7 100644
--- a/src/Features/CSharp/Portable/UseIndexOrRangeOperator/CSharpUseIndexOperatorDiagnosticAnalyzer.cs
+++ b/src/Features/CSharp/Portable/UseIndexOrRangeOperator/CSharpUseIndexOperatorDiagnosticAnalyzer.cs
@@ -1,5 +1,6 @@
 // Copyright (c) Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
 
+using System;
 using System.Collections.Immutable;
 using System.Composition;
 using System.Threading;
@@ -11,7 +12,6 @@
 
 namespace Microsoft.CodeAnalysis.CSharp.UseIndexOrRangeOperator
 {
-    using System;
     using static Helpers;
 
     /// <summary>