diff --git a/pkgs/by-name/op/open62541/package.nix b/pkgs/by-name/op/open62541/package.nix
index dfa3b403c633..c64f9bbd10f6 100644
--- a/pkgs/by-name/op/open62541/package.nix
+++ b/pkgs/by-name/op/open62541/package.nix
@@ -150,6 +150,8 @@ stdenv.mkDerivation (finalAttrs: {
       rm -r bin/libopen62541*
     '';
 
+  __darwinAllowLocalNetworking = true;
+
   passthru.updateScript = nix-update-script { };
 
   passthru.tests =