diff --git a/standard/standard-library.md b/standard/standard-library.md
index fcf3542c8..7c7f33e36 100644
--- a/standard/standard-library.md
+++ b/standard/standard-library.md
@@ -386,7 +386,7 @@ namespace System
 {
     public interface IAsyncDisposable
     {
-        ValueTask DisposeAsync();
+        System.Threading.Tasks.ValueTask DisposeAsync();
     }
 
     public class FormattableString : IFormattable { }
@@ -399,9 +399,9 @@ namespace System.Collections.Generic
         IAsyncEnumerator<T> GetAsyncEnumerator();
     }
 
-    public interface IAsyncEnumerator<out T> : IAsyncDisposable
+    public interface IAsyncEnumerator<out T> : System.IAsyncDisposable
     {
-        ValueTask<bool> MoveNextAsync();
+        System.Threading.Tasks.ValueTask<bool> MoveNextAsync();
         T Current { get; }
     }
 }