diff --git a/EKF/ekf.h b/EKF/ekf.h
index bfdc77ba3b..acbb43f7c8 100644
--- a/EKF/ekf.h
+++ b/EKF/ekf.h
@@ -462,7 +462,7 @@ private:
 	// calculate the magnetic declination to be used by the alignment and fusion processing
 	void calcMagDeclination();
 
-	// reset position states of the ekf (only vertical position)
+	// reset position states of the ekf (only horizontal position)
 	bool resetPosition();
 
 	// reset height state of the ekf