diff --git a/src/landmark/landmark_base.cpp b/src/landmark/landmark_base.cpp
index bbda7dcbadebe059e619b72602be1eeff5a33254..a47ecce3e0a77a90bc0a2fe97de18c7860ca472a 100644
--- a/src/landmark/landmark_base.cpp
+++ b/src/landmark/landmark_base.cpp
@@ -145,6 +145,7 @@ YAML::Node LandmarkBase::saveToYaml() const
         node["orientation"] = getO()->getState();
         node["orientation fixed"] = getO()->isFixed();
     }
+    node["transformable"] = getP()->isTransformable();
     return node;
 }