diff --git a/src/slic3r/GUI/GLCanvas3D.cpp b/src/slic3r/GUI/GLCanvas3D.cpp
index 4e90b94572..62f09016ae 100644
--- a/src/slic3r/GUI/GLCanvas3D.cpp
+++ b/src/slic3r/GUI/GLCanvas3D.cpp
@@ -1029,6 +1029,7 @@ wxDEFINE_EVENT(EVT_GLCANVAS_INSTANCE_MOVED, SimpleEvent);
 wxDEFINE_EVENT(EVT_GLCANVAS_INSTANCE_ROTATED, SimpleEvent);
 wxDEFINE_EVENT(EVT_GLCANVAS_RESET_SKEW, SimpleEvent);
 wxDEFINE_EVENT(EVT_GLCANVAS_INSTANCE_SCALED, SimpleEvent);
+wxDEFINE_EVENT(EVT_GLCANVAS_INSTANCE_MIRRORED, SimpleEvent);
 wxDEFINE_EVENT(EVT_GLCANVAS_FORCE_UPDATE, SimpleEvent);
 wxDEFINE_EVENT(EVT_GLCANVAS_WIPETOWER_MOVED, Vec3dEvent);
 wxDEFINE_EVENT(EVT_GLCANVAS_WIPETOWER_ROTATED, Vec3dEvent);
@@ -4319,7 +4320,7 @@ void GLCanvas3D::do_mirror(const std::string& snapshot_type)
     for (int id : obj_idx_for_update_info_items)
         wxGetApp().obj_list()->update_info_items(static_cast<size_t>(id));
 
-    post_event(SimpleEvent(EVT_GLCANVAS_SCHEDULE_BACKGROUND_PROCESS));
+    post_event(SimpleEvent(EVT_GLCANVAS_INSTANCE_MIRRORED));
 
     m_dirty = true;
 }
diff --git a/src/slic3r/GUI/GLCanvas3D.hpp b/src/slic3r/GUI/GLCanvas3D.hpp
index 1425b314bc..99935fa166 100644
--- a/src/slic3r/GUI/GLCanvas3D.hpp
+++ b/src/slic3r/GUI/GLCanvas3D.hpp
@@ -167,6 +167,7 @@ wxDECLARE_EVENT(EVT_GLCANVAS_WIPETOWER_MOVED, Vec3dEvent);
 wxDECLARE_EVENT(EVT_GLCANVAS_INSTANCE_ROTATED, SimpleEvent);
 wxDECLARE_EVENT(EVT_GLCANVAS_RESET_SKEW, SimpleEvent);
 wxDECLARE_EVENT(EVT_GLCANVAS_INSTANCE_SCALED, SimpleEvent);
+wxDECLARE_EVENT(EVT_GLCANVAS_INSTANCE_MIRRORED, SimpleEvent);
 wxDECLARE_EVENT(EVT_GLCANVAS_WIPETOWER_ROTATED, Vec3dEvent);
 wxDECLARE_EVENT(EVT_GLCANVAS_ENABLE_ACTION_BUTTONS, Event<bool>);
 wxDECLARE_EVENT(EVT_GLCANVAS_UPDATE_GEOMETRY, Vec3dsEvent<2>);
diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index dacbc22df4..16334b2c87 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -2133,6 +2133,7 @@ Plater::priv::priv(Plater *q, MainFrame *main_frame)
         view3D_canvas->Bind(EVT_GLCANVAS_INSTANCE_ROTATED, [this](SimpleEvent&) { update(); });
         view3D_canvas->Bind(EVT_GLCANVAS_RESET_SKEW, [this](SimpleEvent&) { update(); });
         view3D_canvas->Bind(EVT_GLCANVAS_INSTANCE_SCALED, [this](SimpleEvent&) { update(); });
+        view3D_canvas->Bind(EVT_GLCANVAS_INSTANCE_MIRRORED, [this](SimpleEvent&) { update(); });
         view3D_canvas->Bind(EVT_GLCANVAS_ENABLE_ACTION_BUTTONS, [this](Event<bool>& evt) { this->sidebar->enable_buttons(evt.data); });
         view3D_canvas->Bind(EVT_GLCANVAS_UPDATE_GEOMETRY, &priv::on_update_geometry, this);
         view3D_canvas->Bind(EVT_GLCANVAS_MOUSE_DRAGGING_STARTED, &priv::on_3dcanvas_mouse_dragging_started, this);