diff --git a/l1/ecl_l1_pos_controller.h b/l1/ecl_l1_pos_controller.h
index 605fbf2381..1e20e44e8e 100644
--- a/l1/ecl_l1_pos_controller.h
+++ b/l1/ecl_l1_pos_controller.h
@@ -71,7 +71,13 @@ class __EXPORT ECL_L1_Pos_Controller
 {
 public:
 	ECL_L1_Pos_Controller() :
+		_lateral_accel(0.0),
 		_L1_distance(20.0),
+		_circle_mode(false),
+		_nav_bearing(0.0),
+		_bearing_error(0.0),
+		_crosstrack_error(0.0),
+		_target_bearing(0.0),
 		_L1_period(25.0),
 		_L1_damping(0.75),
 		_L1_ratio(5.0),