diff --git a/src/device_library.h b/src/device_library.h
index 0bbb79ad1..58d6e97cc 100644
--- a/src/device_library.h
+++ b/src/device_library.h
@@ -179,8 +179,9 @@
 
 // Gateways - 0x48
 {189, DeviceType::GATEWAY, "KM200/MB LAN 2", DeviceFlags::EMS_DEVICE_FLAG_NONE},
+{252, DeviceType::GATEWAY, "MX300", DeviceFlags::EMS_DEVICE_FLAG_NONE},
 
 // Generic - 0x40 or other with no product-id and no version
 {0, DeviceType::GENERIC, "unknown", DeviceFlags::EMS_DEVICE_FLAG_NONE}
 
-// clang-format on
\ No newline at end of file
+// clang-format on