diff --git a/app/src/main/cpp/CMakeLists.txt b/app/src/main/cpp/CMakeLists.txt
index 978abfa3..464ae08e 100644
--- a/app/src/main/cpp/CMakeLists.txt
+++ b/app/src/main/cpp/CMakeLists.txt
@@ -233,6 +233,7 @@ SET(MQTT_SOURCES
         ${MQTT_ROOT}/mosquitto_wrapper.cpp
         ${MQTT_ROOT}/JNIEnvHandler.cpp
         ${MQTT_ROOT}/MqttClient.cpp
+        ${MQTT_ROOT}/RespJson.cpp
 
         )
 include_directories(