1 files changed, 1 insertions, 2 deletions
diff --git a/src/coreclr/tools/Common/Internal/NativeFormat/NativeFormatReader.cs b/src/coreclr/tools/Common/Internal/NativeFormat/NativeFormatReader.cs
index 61dcffe2403..91ed075a79d 100644
--- a/src/coreclr/tools/Common/Internal/NativeFormat/NativeFormatReader.cs
+++ b/src/coreclr/tools/Common/Internal/NativeFormat/NativeFormatReader.cs
@@ -9,7 +9,6 @@
 
 using System;
 using System.Diagnostics;
-using System.Runtime.CompilerServices;
 
 namespace Internal.NativeFormat
 {
@@ -215,7 +214,7 @@ namespace Internal.NativeFormat
         }
     }
 
-    internal unsafe partial class NativeReader
+    internal sealed unsafe partial class NativeReader
     {
         private readonly byte* _base;
         private readonly uint _size;