diff --git a/ArduSub/Sub.h b/ArduSub/Sub.h
index 52cd205175..9c6e621bc4 100644
--- a/ArduSub/Sub.h
+++ b/ArduSub/Sub.h
@@ -536,8 +536,6 @@ private:
 #endif
     bool verify_nav_delay(const AP_Mission::Mission_Command& cmd);
 
-    void log_init(void);
-
     void failsafe_leak_check();
     void failsafe_internal_pressure_check();
     void failsafe_internal_temperature_check();