diff --git a/pkgs/development/ocaml-modules/domain-local-await/default.nix b/pkgs/development/ocaml-modules/domain-local-await/default.nix
index 9b90e87aa517..a9b5f76839ae 100644
--- a/pkgs/development/ocaml-modules/domain-local-await/default.nix
+++ b/pkgs/development/ocaml-modules/domain-local-await/default.nix
@@ -22,6 +22,7 @@ buildDunePackage rec {
     thread-table
   ];
 
+  __darwinAllowLocalNetworking = true;
   doCheck = true;
 
   checkInputs = [