diff --git a/src/libslic3r/Format/3mf.cpp b/src/libslic3r/Format/3mf.cpp
index 1b3a95d1c..d08e3be31 100644
--- a/src/libslic3r/Format/3mf.cpp
+++ b/src/libslic3r/Format/3mf.cpp
@@ -2958,9 +2958,9 @@ namespace Slic3r {
 
         unsigned int object_cnt = 0;
         for (const ModelObject* object : model.objects) {
+            object_cnt++;
             if (!object->is_cut())
                 continue;
-            object_cnt++;
             pt::ptree& obj_tree = tree.add("objects.object", "");
 
             obj_tree.put("<xmlattr>.id", object_cnt);