diff --git a/source/gui/widgets/listbox.cpp b/source/gui/widgets/listbox.cpp
index 2fdd474a..22b87cf3 100644
--- a/source/gui/widgets/listbox.cpp
+++ b/source/gui/widgets/listbox.cpp
@@ -2943,7 +2943,7 @@ namespace nana
 									if (arg.shift)
 										lister.select_display_range(lister.last_selected, item_pos, sel);
 									else if (arg.ctrl)
-										sel = !item_proxy(essence_, item_pos).selected();  
+										sel = !item_proxy(essence_, index_pair (item_pos.cat, lister.absolute(item_pos))).selected();  
 									else
 										lister.select_for_all(false);
 								}