diff --git a/pkgs/by-name/kn/knot-dns/package.nix b/pkgs/by-name/kn/knot-dns/package.nix
index f2c58300c055..361bdb298424 100644
--- a/pkgs/by-name/kn/knot-dns/package.nix
+++ b/pkgs/by-name/kn/knot-dns/package.nix
@@ -101,6 +101,8 @@ stdenv.mkDerivation rec {
     "-DNDEBUG"
   ];
 
+  __darwinAllowLocalNetworking = true;
+
   doCheck = true;
   checkFlags = [ "V=1" ]; # verbose output in case some test fails
   doInstallCheck = true;