diff --git a/lib/espMqttClient/src/Transport/ClientPosixIPAddress.cpp b/lib/espMqttClient/src/Transport/ClientPosixIPAddress.cpp
index b7d0c636a..620653ae7 100644
--- a/lib/espMqttClient/src/Transport/ClientPosixIPAddress.cpp
+++ b/lib/espMqttClient/src/Transport/ClientPosixIPAddress.cpp
@@ -6,6 +6,8 @@ For a copy, see <https://opensource.org/licenses/MIT> or
 the LICENSE file.
 */
 
+#if defined(__linux__) || defined(_WIN32) || defined(__APPLE__)
+
 #include "ClientPosixIPAddress.h"
 
 IPAddress::IPAddress()
@@ -26,3 +28,5 @@ IPAddress::IPAddress(uint32_t address)
 IPAddress::operator uint32_t() {
     return _address;
 }
+
+#endif