diff --git a/src/libraries/System.Private.CoreLib/src/System/IntPtr.cs b/src/libraries/System.Private.CoreLib/src/System/IntPtr.cs
index f79334a96befd..d23742fa7bbfd 100644
--- a/src/libraries/System.Private.CoreLib/src/System/IntPtr.cs
+++ b/src/libraries/System.Private.CoreLib/src/System/IntPtr.cs
@@ -217,6 +217,9 @@ public static int Size
         [CLSCompliant(false)]
         [Intrinsic]
         [NonVersionable]
+#if PROJECTN
+        [System.Runtime.CompilerServices.DependencyReductionRootAttribute]
+#endif
         public unsafe void* ToPointer()
         {
             return _value;
diff --git a/src/libraries/System.Private.CoreLib/src/System/UIntPtr.cs b/src/libraries/System.Private.CoreLib/src/System/UIntPtr.cs
index 9534f4f872809..c57dd86a76bbf 100644
--- a/src/libraries/System.Private.CoreLib/src/System/UIntPtr.cs
+++ b/src/libraries/System.Private.CoreLib/src/System/UIntPtr.cs
@@ -208,6 +208,9 @@ public static unsafe int Size
 
         [Intrinsic]
         [NonVersionable]
+#if PROJECTN
+        [System.Runtime.CompilerServices.DependencyReductionRootAttribute]
+#endif
         public unsafe void* ToPointer()
         {
             return _value;