diff --git a/ObjectTypes/HexahedralMesh/PolyhedralMesh.cc b/ObjectTypes/HexahedralMesh/PolyhedralMesh.cc
index ada7138e49d6d95737f44e927ac4ccc6637bdd3c..134d74c3d3041d2cfafa0a17b467031c89a8e854 100644
--- a/ObjectTypes/HexahedralMesh/PolyhedralMesh.cc
+++ b/ObjectTypes/HexahedralMesh/PolyhedralMesh.cc
@@ -38,6 +38,8 @@
 #include <ObjectTypes/VolumeMeshObject/VolumeMeshObjectT.cc>
 #include <ObjectTypes/VolumeMeshObject/VolumeMeshNodeT.cc>
 #include <ObjectTypes/VolumeMeshObject/VolumeMeshNodeGLCompatT.cc>
+#include <OpenFlipper/common/ObjectTypeDLLDefines.hh>
 
-template class VolumeMeshObject<HexahedralMesh>;
-template class ACG::SceneGraph::VolumeMeshNodeT<HexahedralMesh>;
+
+template class OBJECTTYPEDLLEXPORT VolumeMeshObject<HexahedralMesh>;
+template class OBJECTTYPEDLLEXPORT ACG::SceneGraph::VolumeMeshNodeT<HexahedralMesh>;
diff --git a/ObjectTypes/PolyhedralMesh/PolyhedralMesh.cc b/ObjectTypes/PolyhedralMesh/PolyhedralMesh.cc
index 22299ceec940f925321392248b8f768e262b17c3..f728df8bf711ba66d75954e494bda73eb096515e 100644
--- a/ObjectTypes/PolyhedralMesh/PolyhedralMesh.cc
+++ b/ObjectTypes/PolyhedralMesh/PolyhedralMesh.cc
@@ -38,6 +38,7 @@
 #include <ObjectTypes/VolumeMeshObject/VolumeMeshObjectT.cc>
 #include <ObjectTypes/VolumeMeshObject/VolumeMeshNodeT.cc>
 #include <ObjectTypes/VolumeMeshObject/VolumeMeshNodeGLCompatT.cc>
+#include <OpenFlipper/common/ObjectTypeDLLDefines.hh>
 
-template class VolumeMeshObject<PolyhedralMesh>;
-template class ACG::SceneGraph::VolumeMeshNodeT<PolyhedralMesh>;
+template class OBJECTTYPEDLLEXPORT VolumeMeshObject<PolyhedralMesh>;
+template class OBJECTTYPEDLLEXPORT ACG::SceneGraph::VolumeMeshNodeT<PolyhedralMesh>;
diff --git a/ObjectTypes/TetrahedralMesh/TetrahedralMesh.cc b/ObjectTypes/TetrahedralMesh/TetrahedralMesh.cc
index 76a224f2e08e83884f497af5fba8a3f06b0bf3d6..10fcaf25a3cf0fbc32b1f11bb193536ebe34c19a 100644
--- a/ObjectTypes/TetrahedralMesh/TetrahedralMesh.cc
+++ b/ObjectTypes/TetrahedralMesh/TetrahedralMesh.cc
@@ -38,6 +38,7 @@
 #include <ObjectTypes/VolumeMeshObject/VolumeMeshObjectT.cc>
 #include <ObjectTypes/VolumeMeshObject/VolumeMeshNodeT.cc>
 #include <ObjectTypes/VolumeMeshObject/VolumeMeshNodeGLCompatT.cc>
+#include <OpenFlipper/common/ObjectTypeDLLDefines.hh>
 
-template class VolumeMeshObject<TetrahedralMesh>;
-template class ACG::SceneGraph::VolumeMeshNodeT<TetrahedralMesh>;
+template class OBJECTTYPEDLLEXPORT VolumeMeshObject<TetrahedralMesh>;
+template class OBJECTTYPEDLLEXPORT ACG::SceneGraph::VolumeMeshNodeT<TetrahedralMesh>;