diff --git a/src/user_code.hpp b/src/user_code.hpp
index 201ed80..c9fbcff 100644
--- a/src/user_code.hpp
+++ b/src/user_code.hpp
@@ -71,6 +71,7 @@ void elcd_sendstop();
 void ac_update_lcd();
 void pwm_update_lcd();
 void mqtt_connected_user_callback();
+void ac_lock_report();
 
 // ESPMega IoT Core Build-in Functions
 extern void pwm_set_state(int id, int state);