diff --git a/pkgs/development/python-modules/demetriek/default.nix b/pkgs/development/python-modules/demetriek/default.nix
index 4d0f33a13873..42205ac652f9 100644
--- a/pkgs/development/python-modules/demetriek/default.nix
+++ b/pkgs/development/python-modules/demetriek/default.nix
@@ -67,6 +67,8 @@ buildPythonPackage rec {
     "demetriek"
   ];
 
+  __darwinAllowLocalNetworking = true;
+
   meta = with lib; {
     description = "Python client for LaMetric TIME devices";
     homepage = "https://github.com/frenck/python-demetriek";