diff --git a/src/node_main.ml b/src/node_main.ml
index c9f243d63..a36c1e12d 100644
--- a/src/node_main.ml
+++ b/src/node_main.ml
@@ -306,7 +306,7 @@ let may f = function
 
 let init_signal () =
   let handler id = try Utils.exit id with _ -> () in
-  ignore (Lwt_unix.on_signal 2 handler : Lwt_unix.signal_handler_id)
+  ignore (Lwt_unix.on_signal Sys.sigint handler : Lwt_unix.signal_handler_id)
 
 let main () =
   Random.self_init () ;