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diff --git a/include/grpc/grpc.h b/include/grpc/grpc.h
index 077b432..358f592 100644
--- a/include/grpc/grpc.h
+++ b/include/grpc/grpc.h
@@ -554,7 +554,8 @@
grpc_completion_queue *completion_queue, void *tag_new);
/* Create a server. Additional configuration for each incoming channel can
- be specified with args. See grpc_channel_args for more. */
+ be specified with args. If no additional configuration is needed, args can
+ be NULL. See grpc_channel_args for more. */
grpc_server *grpc_server_create(grpc_completion_queue *cq,
const grpc_channel_args *args);