diff --git a/object_print3d_utils/ui.py b/object_print3d_utils/ui.py
index 14a27bf5bfd0c1c94698df49cb9410c8940f2648..dd286557b82650f99680fe7776a6acca1130b3d8 100644
--- a/object_print3d_utils/ui.py
+++ b/object_print3d_utils/ui.py
@@ -58,9 +58,11 @@ class Print3DToolBar:
                     col.operator("mesh.print3d_select_report",
                                  text=text,
                                  icon=Print3DToolBar._type_to_icon[bm_type]).index = i
+                    layout.operator("mesh.select_non_manifold", text='Non Manifold Extended')
                 else:
                     col.label(text)
 
+
     def draw(self, context):
         layout = self.layout