diff --git a/src/bindings/bnd_3dm_settings.cpp b/src/bindings/bnd_3dm_settings.cpp
index f7cecaca..f0f67d5c 100644
--- a/src/bindings/bnd_3dm_settings.cpp
+++ b/src/bindings/bnd_3dm_settings.cpp
@@ -75,7 +75,7 @@ BND_RenderSettings::~BND_RenderSettings()
 
 void BND_RenderSettings::Construct()
 {
-  m_ground_plane        = new BND_File3dmGroundPlane       (&m_render_settings->GroundPlane());
+  m_ground_plane        = new BND_File3dmGroundPlane       (std::shared_ptr<ON_GroundPlane>(&m_render_settings->GroundPlane()));
   m_safe_frame          = new BND_File3dmSafeFrame         (&m_render_settings->SafeFrame());
   m_dithering           = new BND_File3dmDithering         (&m_render_settings->Dithering());
   m_skylight            = new BND_File3dmSkylight          (&m_render_settings->Skylight());
diff --git a/src/bindings/bnd_ground_plane.cpp b/src/bindings/bnd_ground_plane.cpp
index 60fcb298..6aae6c67 100644
--- a/src/bindings/bnd_ground_plane.cpp
+++ b/src/bindings/bnd_ground_plane.cpp
@@ -3,19 +3,17 @@
 
 BND_File3dmGroundPlane::BND_File3dmGroundPlane()
 {
-  _gp = new ON_GroundPlane;
-  _owned = true;
+  _gp = std::make_shared<ON_GroundPlane>();
 }
 
 BND_File3dmGroundPlane::BND_File3dmGroundPlane(const BND_File3dmGroundPlane& gp)
 {
-  _gp = new ON_GroundPlane(*gp._gp);
-  _owned = true;
+  _gp = gp._gp;
 }
 
-BND_File3dmGroundPlane::BND_File3dmGroundPlane(ON_GroundPlane* gp)
-: _gp(gp)
+BND_File3dmGroundPlane::BND_File3dmGroundPlane(std::shared_ptr<ON_GroundPlane> gp)
 {
+  _gp = gp;
 }
 
 #if defined(ON_PYTHON_COMPILE)
diff --git a/src/bindings/bnd_ground_plane.h b/src/bindings/bnd_ground_plane.h
index e6db9ea4..6d8a7d81 100644
--- a/src/bindings/bnd_ground_plane.h
+++ b/src/bindings/bnd_ground_plane.h
@@ -12,14 +12,12 @@ void initGroundPlaneBindings(void* m);
 class BND_File3dmGroundPlane
 {
 private:
-  ON_GroundPlane* _gp = nullptr;
-  bool _owned = false;
+  std::shared_ptr<ON_GroundPlane> _gp;
 
 public:
   BND_File3dmGroundPlane();
-  BND_File3dmGroundPlane(ON_GroundPlane* gp);
+  BND_File3dmGroundPlane(std::shared_ptr<ON_GroundPlane> gp);
   BND_File3dmGroundPlane(const BND_File3dmGroundPlane& gp);
-  ~BND_File3dmGroundPlane() { if (_owned) delete _gp; }
 
   bool GetEnabled(void) const { return _gp->Enabled(); }
   void SetEnabled(bool v) { _gp->SetEnabled(v); }