diff --git a/EKF/ekf.cpp b/EKF/ekf.cpp
index 4b00b0310d..495e781a9f 100644
--- a/EKF/ekf.cpp
+++ b/EKF/ekf.cpp
@@ -81,10 +81,13 @@ Ekf::Ekf():
 	_time_last_hgt_fuse(0),
 	_time_last_of_fuse(0),
 	_time_last_arsp_fuse(0),
+	_time_last_beta_fuse(0),
 	_last_disarmed_posD(0.0f),
 	_last_dt_overrun(0.0f),
 	_airspeed_innov(0.0f),
 	_airspeed_innov_var(0.0f),
+	_beta_innov(0.0f),
+ 	_beta_innov_var(0.0f),
 	_heading_innov(0.0f),
 	_heading_innov_var(0.0f),
 	_delta_time_of(0.0f),