diff --git a/EKF/ekf.cpp b/EKF/ekf.cpp
index beeca470b1..fe7e617990 100644
--- a/EKF/ekf.cpp
+++ b/EKF/ekf.cpp
@@ -77,10 +77,10 @@ Ekf::Ekf():
 	_last_known_posNE.setZero();
 	_earth_rate_NED.setZero();
 	_R_prev = matrix::Dcm<float>();
-	_vel_pos_innov = {0};
-	_mag_innov = {0};
-	_vel_pos_innov_var = {0};
-	_mag_innov_var = {0};
+	memset(_vel_pos_innov, 0, sizeof(_vel_pos_innov));
+	memset(_mag_innov, 0, sizeof(_mag_innov));
+	memset(_vel_pos_innov_var, 0, sizeof(_vel_pos_innov_var));
+	memset(_mag_innov_var, 0, sizeof(_mag_innov_var));
 	_delta_angle_corr.setZero();
 	_delta_vel_corr.setZero();
 	_vel_corr.setZero();
diff --git a/EKF/estimator_interface.cpp b/EKF/estimator_interface.cpp
index 3bfeb7b64d..32dbc5c5e6 100644
--- a/EKF/estimator_interface.cpp
+++ b/EKF/estimator_interface.cpp
@@ -69,8 +69,8 @@ EstimatorInterface::EstimatorInterface():
 	_mag_declination_to_save_deg(0.0f)
 {
     _pos_ref = {};
-    _mag_test_ratio = {0};
-    _vel_pos_test_ratio = {0};
+    memset(_mag_test_ratio, 0, sizeof(_mag_test_ratio));
+    memset(_vel_pos_test_ratio, 0, sizeof(_vel_pos_test_ratio));
 }
 
 EstimatorInterface::~EstimatorInterface()