diff --git a/xs/src/libslic3r/Model.cpp b/xs/src/libslic3r/Model.cpp
index 674f47fa5..12414f866 100644
--- a/xs/src/libslic3r/Model.cpp
+++ b/xs/src/libslic3r/Model.cpp
@@ -1186,7 +1186,8 @@ ModelInstance::transform_mesh(TriangleMesh* mesh, bool dont_translate) const
 
 TransformationMatrix ModelInstance::get_trafo_matrix(bool dont_translate) const
 {
-    TransformationMatrix trafo = TransformationMatrix::mat_rotation(this->rotation, Axis::Z);
+    TransformationMatrix trafo = this->additional_trafo;
+    trafo.applyLeft(TransformationMatrix::mat_rotation(this->rotation, Axis::Z));
     trafo.applyLeft(TransformationMatrix::mat_scale(this->scaling_factor));
     if(!dont_translate)
     {
diff --git a/xs/src/libslic3r/Model.hpp b/xs/src/libslic3r/Model.hpp
index 56645e3f5..80734acde 100644
--- a/xs/src/libslic3r/Model.hpp
+++ b/xs/src/libslic3r/Model.hpp
@@ -589,6 +589,7 @@ class ModelInstance
     double rotation;            ///< Rotation around the Z axis, in radians around mesh center point.
     double scaling_factor;      ///< uniform scaling factor.
     Pointf offset;              ///< offset in unscaled coordinates.
+    TransformationMatrix additional_trafo; ///< 3mf instance transformation cannot be completely represented by the other properties
 
     /// Get the owning ModelObject
     /// \return ModelObject* pointer to the owner ModelObject