diff --git a/src/modules/ekf2/EKF/terrain_control.cpp b/src/modules/ekf2/EKF/terrain_control.cpp
index 4149a962dd..747686febd 100644
--- a/src/modules/ekf2/EKF/terrain_control.cpp
+++ b/src/modules/ekf2/EKF/terrain_control.cpp
@@ -108,7 +108,7 @@ void Ekf::updateTerrainValidity()
 		float hagl_var = INFINITY;
 		sym::ComputeHaglInnovVar(P, 0.f, &hagl_var);
 
-		// TODO: quantigy this hagl_var check
+		// TODO: quantify this hagl_var check
 		if ((hagl_var > 0.f) && (hagl_var < sq(fmaxf(0.1f * getHagl(), 0.5f)))) {
 			small_relative_hagl_var = true;
 		}
diff --git a/src/modules/ekf2/EKF2.cpp b/src/modules/ekf2/EKF2.cpp
index 3f21b86bb8..a40127f616 100644
--- a/src/modules/ekf2/EKF2.cpp
+++ b/src/modules/ekf2/EKF2.cpp
@@ -1618,7 +1618,7 @@ void EKF2::PublishLocalPosition(const hrt_abstime &timestamp)
 
 #if defined(CONFIG_EKF2_TERRAIN)
 	// Distance to bottom surface (ground) in meters, must be positive
-	// TODO: review
+	// TODO: review -- we should merge getHagl() and isTerrainEstimateValid() since they must always be used together
 	lpos.dist_bottom_valid = _ekf.isTerrainEstimateValid();
 	lpos.dist_bottom = math::max(_ekf.getHagl(), 0.f);
 	lpos.dist_bottom_var = _ekf.getTerrainVariance();