diff --git a/client/mozilla/localsocketcontroller.cpp b/client/mozilla/localsocketcontroller.cpp
index 8583de4e..54f87a12 100644
--- a/client/mozilla/localsocketcontroller.cpp
+++ b/client/mozilla/localsocketcontroller.cpp
@@ -125,7 +125,7 @@ void LocalSocketController::activate(const QJsonObject &rawConfig) {
   json.insert("privateKey", wgConfig.value(amnezia::config_key::client_priv_key));
   json.insert("deviceIpv4Address", wgConfig.value(amnezia::config_key::client_ip));
   // todo review wg ipv6
-#ifndef Q_OS_WINDOWS
+#ifdef Q_OS_MACOS
   json.insert("deviceIpv6Address", "dead::1");
 #endif
   json.insert("serverPublicKey", wgConfig.value(amnezia::config_key::server_pub_key));