diff --git a/src/modules/navigator/navigator_main.cpp b/src/modules/navigator/navigator_main.cpp
index c3e606da0d..cb7ce3284a 100644
--- a/src/modules/navigator/navigator_main.cpp
+++ b/src/modules/navigator/navigator_main.cpp
@@ -160,7 +160,8 @@ Navigator::Navigator() :
 	_param_cruising_speed_hover(this, "MPC_XY_CRUISE", false),
 	_param_cruising_speed_plane(this, "FW_AIRSPD_TRIM", false),
 	_param_cruising_throttle_plane(this, "FW_THR_CRUISE", false),
-	_mission_cruising_speed(-1.0f)
+	_mission_cruising_speed(-1.0f),
+	_mission_throttle(-1.0f)
 {
 	/* Create a list of our possible navigation types */
 	_navigation_mode_array[0] = &_mission;