diff --git a/src/libslic3r/PrintObjectSlice.cpp b/src/libslic3r/PrintObjectSlice.cpp
index 8850c2620..acbcfcae1 100644
--- a/src/libslic3r/PrintObjectSlice.cpp
+++ b/src/libslic3r/PrintObjectSlice.cpp
@@ -1017,21 +1017,6 @@ void PrintObject::slice_volumes()
         PrintObject::clip_multipart_objects,
         throw_on_cancel_callback);
 
-    // SuperSlicer: filament shrink
-    for (const std::unique_ptr<PrintRegion> &pr : m_shared_regions->all_regions) {
-        if (pr.get()) {
-            std::vector<ExPolygons> &region_polys = region_slices[pr->print_object_region_id()];
-            const size_t             extruder_id  = pr->extruder(FlowRole::frPerimeter) - 1;
-            double                   scale        = print->config().filament_shrink.values[extruder_id] * 0.01;
-            if (scale != 1) {
-                scale = 1 / scale;
-                for (ExPolygons &polys : region_polys)
-                    for (ExPolygon &poly : polys) poly.scale(scale);
-            }
-        }
-    }
-
-
     for (size_t region_id = 0; region_id < region_slices.size(); ++ region_id) {
         std::vector<ExPolygons> &by_layer = region_slices[region_id];
         for (size_t layer_id = 0; layer_id < by_layer.size(); ++ layer_id)
@@ -1074,6 +1059,23 @@ void PrintObject::slice_volumes()
     InterlockingGenerator::generate_interlocking_structure(this);
     m_print->throw_if_canceled();
 
+    // SuperSlicer: filament shrink
+    for (Layer *layer : m_layers) {
+        for (size_t i = 0; i < layer->region_count(); ++i) {
+            LayerRegion *region = layer->get_region(i);
+            ExPolygons ex_polys = to_expolygons(region->slices.surfaces);
+            int       filament_id = region->region().extruder(FlowRole::frPerimeter) - 1;
+            double       scale       = print->config().filament_shrink.values[filament_id] * 0.01;
+            if (scale != 1) {
+                scale = 1 / scale;
+                for (ExPolygon &poly : ex_polys)
+                    poly.scale(scale);
+            }
+
+            region->slices.set(std::move(ex_polys), stInternal);
+        }
+    }
+
     BOOST_LOG_TRIVIAL(debug) << "Slicing volumes - make_slices in parallel - begin";
     {
         // Compensation value, scaled. Only applying the negative scaling here, as the positive scaling has already been applied during slicing.