diff --git a/src/modules/ekf2/ekf2_main.cpp b/src/modules/ekf2/ekf2_main.cpp
index 60303e37bc..1e9a4ead40 100644
--- a/src/modules/ekf2/ekf2_main.cpp
+++ b/src/modules/ekf2/ekf2_main.cpp
@@ -763,7 +763,7 @@ void Ekf2::task_main()
 			ev_data.posNED(0) = ev_pos.x;
 			ev_data.posNED(1) = ev_pos.y;
 			ev_data.posNED(2) = ev_pos.z;
-			Quaternion q(ev_att.q);
+			Quatf q(ev_att.q);
 			ev_data.quat = q;
 
 			// position measurement error from parameters. TODO : use covariances from topic