diff --git a/source/include/core_mqtt_agent.h b/source/include/core_mqtt_agent.h
index 74491190..80c0e449 100644
--- a/source/include/core_mqtt_agent.h
+++ b/source/include/core_mqtt_agent.h
@@ -27,6 +27,10 @@
 #ifndef CORE_MQTT_AGENT_H
 #define CORE_MQTT_AGENT_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* MQTT library includes. */
 #include "core_mqtt.h"
 #include "core_mqtt_state.h"
@@ -949,4 +953,8 @@ MQTTStatus_t MQTTAgent_Terminate( const MQTTAgentContext_t * pMqttAgentContext,
                                   const MQTTAgentCommandInfo_t * pCommandInfo );
 /* @[declare_mqtt_agent_terminate] */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* CORE_MQTT_AGENT_H */