diff --git a/pkgs/development/python-modules/blockbuster/default.nix b/pkgs/development/python-modules/blockbuster/default.nix
index 2fee3087da58..0560a02915a6 100644
--- a/pkgs/development/python-modules/blockbuster/default.nix
+++ b/pkgs/development/python-modules/blockbuster/default.nix
@@ -36,6 +36,8 @@ buildPythonPackage rec {
     "test_ssl_socket"
   ];
 
+  __darwinAllowLocalNetworking = true;
+
   pythonImportsCheck = [ "blockbuster" ];
 
   meta = {