diff --git a/EKF/common.h b/EKF/common.h
index 97db40d1ab..869e431c45 100644
--- a/EKF/common.h
+++ b/EKF/common.h
@@ -214,7 +214,7 @@ struct parameters {
 	parameters()
 	{
 		// measurement source control
-		fusion_mode = MASK_USE_OF;
+		fusion_mode = MASK_USE_GPS;
 		vdist_sensor_type = VDIST_SENSOR_BARO;
 
 		// measurement time delays