diff --git a/src/lib_performance_metrics/octez_performance_metrics.ml b/src/lib_performance_metrics/octez_performance_metrics.ml
index aabebec72221c4f579b474095b2d40d3bad3934f..f3b4b9bb491b647acf3e38f980eeee0954be8e67 100644
--- a/src/lib_performance_metrics/octez_performance_metrics.ml
+++ b/src/lib_performance_metrics/octez_performance_metrics.ml
@@ -109,7 +109,7 @@ module Make (R : REGISTRY) = struct
       (fun () ->
         let open Lwt_syntax in
         let+ s =
-          Lwt_process.with_process_in
+          Lwt_process.with_process_full
             ~env:[|"LC_ALL=C"|]
             ("du", [|"du"; "-sk"; path|])
             (fun pc -> Lwt_io.read_line pc#stdout)