diff --git a/src/node/net/p2p.ml b/src/node/net/p2p.ml
index 053aea871..a41a5e43d 100644
--- a/src/node/net/p2p.ml
+++ b/src/node/net/p2p.ml
@@ -272,14 +272,15 @@ module Real = struct
     P2p_connection_pool.write_all pool msg ;
     Lwt.ignore_result (lwt_debug "message broadcasted")
 
+  let pool { pool } = pool
 end
 
 module Fake = struct
 
   let id = Identity.generate (Crypto_box.make_target 0.)
   let empty_stat = {
-    Stat.total_sent = 0 ;
-    total_recv = 0 ;
+    Stat.total_sent = 0L ;
+    total_recv = 0L ;
     current_inflow = 0 ;
     current_outflow = 0 ;
   }
diff --git a/src/node/net/p2p_types.ml b/src/node/net/p2p_types.ml
index c8c201d21..0f69270ea 100644
--- a/src/node/net/p2p_types.ml
+++ b/src/node/net/p2p_types.ml
@@ -45,12 +45,19 @@ end
 module Stat = struct
 
   type t = {
-    total_sent : int ;
-    total_recv : int ;
+    total_sent : int64 ;
+    total_recv : int64 ;
     current_inflow : int ;
     current_outflow : int ;
   }
 
+  let empty = {
+    total_sent = 0L ;
+    total_recv = 0L ;
+    current_inflow = 0 ;
+    current_outflow = 0 ;
+  }
+
   let print_size ppf sz =
     let ratio n = (float_of_int sz /. float_of_int (1 lsl n)) in
     if sz < 1 lsl 10 then
diff --git a/src/utils/moving_average.ml b/src/utils/moving_average.ml
index eea6a4334..3ac4a82ea 100644
--- a/src/utils/moving_average.ml
+++ b/src/utils/moving_average.ml
@@ -18,7 +18,7 @@ module Inttbl = Hashtbl.Make(struct
 type t = {
   id: int;
   alpha: int ;
-  mutable total: int ;
+  mutable total: int64 ;
   mutable current: int ;
   mutable average: int ;
 }
@@ -66,19 +66,19 @@ let create =
     incr cpt ;
     assert (0. < alpha && alpha <= 1.) ;
     let alpha = int_of_float (1000. *. alpha) in
-    let c = { id ; alpha ; total = 0 ; current = 0 ; average = init } in
+    let c = { id ; alpha ; total = 0L ; current = 0 ; average = init } in
     Inttbl.add counters id c ;
     c
 
 let add c x =
-  c.total <- c.total + x ;
+  c.total <- Int64.(add c.total (of_int x)) ;
   c.current <- c.current + x
 
 let destroy c =
   Inttbl.remove counters c.id
 
 type stat = {
-  total: int ;
+  total: int64 ;
   average: int ;
 }
 
diff --git a/src/utils/moving_average.mli b/src/utils/moving_average.mli
index 24acbe95b..131ecbf14 100644
--- a/src/utils/moving_average.mli
+++ b/src/utils/moving_average.mli
@@ -18,7 +18,7 @@ val on_update: (unit -> unit) -> unit
 val updated: unit Lwt_condition.t
 
 type stat = {
-  total: int ;
+  total: int64 ;
   average: int ;
 }
 val stat: t -> stat