diff --git a/src/lib/provider_config.ml b/src/lib/provider_config.ml
index 7932fabe..b9e2278f 100644
--- a/src/lib/provider_config.ml
+++ b/src/lib/provider_config.ml
@@ -8,4 +8,4 @@ type t = {
 let make ?(batch : int option) ?(timeout = Mtime.Span.(2_000 * ms)) () : t =
   { batch; timeout }
 
-let default : t = make ~batch:200 ()
+let default : t = make ()
diff --git a/src/lib/provider_config.mli b/src/lib/provider_config.mli
index a7e77374..f9f39101 100644
--- a/src/lib/provider_config.mli
+++ b/src/lib/provider_config.mli
@@ -9,8 +9,8 @@ type t = {
 
 val make : ?batch:int -> ?timeout:Mtime.Span.t -> unit -> t
 (** Create a provider config.
-    @param batch batch size. Default: [Some 200].
+    @param batch batch size. [None] (the default) means no batching.
     @param timeout flush timeout. Default: [2000ms] *)
 
 val default : t
-(** Default provider config: [200] batch size, [2s] timeout. *)
+(** Default provider config: no batching, [2s] timeout. *)