diff --git a/src/Utility/Polyfill/System.Runtime.CompilerServices.IsExternalInit.cs b/src/Utility/Polyfill/System.Runtime.CompilerServices.IsExternalInit.cs
index f4b6d744..065bf49c 100644
--- a/src/Utility/Polyfill/System.Runtime.CompilerServices.IsExternalInit.cs
+++ b/src/Utility/Polyfill/System.Runtime.CompilerServices.IsExternalInit.cs
@@ -1,4 +1,8 @@
-#if !NET5_0_OR_GREATER
+#if NET5_0_OR_GREATER
+using System.Runtime.CompilerServices;
+
+[assembly:TypeForwardedTo(typeof(IsExternalInit))]
+#else
 
 using System.ComponentModel;
 namespace System.Runtime.CompilerServices;