diff --git a/src/IKVM.Runtime/System/Index.cs b/src/IKVM.Runtime/System/Index.cs
index 7e3807ee8..f29a3ab47 100644
--- a/src/IKVM.Runtime/System/Index.cs
+++ b/src/IKVM.Runtime/System/Index.cs
@@ -3,8 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 #if NETSTANDARD2_1 || NET
-using System.Runtime.CompilerServices;
-[assembly: TypeForwardedTo(typeof(System.Index))]
 #else
 using System.Runtime.CompilerServices;
 
diff --git a/src/IKVM.Runtime/System/Range.cs b/src/IKVM.Runtime/System/Range.cs
index bcd5707c2..eeda47db4 100644
--- a/src/IKVM.Runtime/System/Range.cs
+++ b/src/IKVM.Runtime/System/Range.cs
@@ -3,8 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 #if NETSTANDARD2_1 || NET
-using System.Runtime.CompilerServices;
-[assembly: TypeForwardedTo(typeof(System.Range))]
 #else
 using System.Runtime.CompilerServices;