1 files changed, 1 insertions, 2 deletions
diff --git a/src/csharp/Grpc.Core/IAsyncStreamWriter.cs b/src/csharp/Grpc.Core/IAsyncStreamWriter.cs
index 4bd8bfb8df..644f445401 100644
--- a/src/csharp/Grpc.Core/IAsyncStreamWriter.cs
+++ b/src/csharp/Grpc.Core/IAsyncStreamWriter.cs
@@ -44,10 +44,9 @@ namespace Grpc.Core
     /// </summary>
     /// <typeparam name="T"></typeparam>
     public interface IAsyncStreamWriter<T>
-        where T : class
     {
         /// <summary>
-        /// Writes a single message. Only one write can be pending at a time.
+        /// Writes a single asynchronously. Only one write can be pending at a time.
         /// </summary>
         /// <param name="message">the message to be written. Cannot be null.</param>
         Task Write(T message);