diff --git a/include/nana/gui/widgets/checkbox.hpp b/include/nana/gui/widgets/checkbox.hpp
index 57239d20..1a75c91a 100644
--- a/include/nana/gui/widgets/checkbox.hpp
+++ b/include/nana/gui/widgets/checkbox.hpp
@@ -104,6 +104,7 @@ namespace drawerbase
 		struct element_tag
 		{
 			checkbox * uiobj;
+			event_handle eh_clicked;
 			event_handle eh_checked;
 			event_handle eh_destroy;
 			event_handle eh_keyboard;
diff --git a/source/gui/widgets/checkbox.cpp b/source/gui/widgets/checkbox.cpp
index a43cd908..3148ee88 100644
--- a/source/gui/widgets/checkbox.cpp
+++ b/source/gui/widgets/checkbox.cpp
@@ -216,6 +216,7 @@ namespace nana{ namespace drawerbase
 			{
 				e.uiobj->radio(false);
 				e.uiobj->react(true);
+				API::umake_event(e.eh_clicked);
 				API::umake_event(e.eh_checked);
 				API::umake_event(e.eh_destroy);
 				API::umake_event(e.eh_keyboard);
@@ -232,7 +233,7 @@ namespace nana{ namespace drawerbase
 
 			el.uiobj = &uiobj;
 
-			uiobj.events().checked.connect_unignorable([this](const arg_checkbox& arg)
+			el.eh_checked = uiobj.events().checked.connect_unignorable([this](const arg_checkbox& arg)
 			{
 				if (arg.widget->checked())
 				{
@@ -244,7 +245,7 @@ namespace nana{ namespace drawerbase
 				}
 			}, true);
 
-			el.eh_checked = uiobj.events().click.connect_unignorable([this](const arg_click& arg)
+			el.eh_clicked = uiobj.events().click.connect_unignorable([this](const arg_click& arg)
 			{
 				for (auto & i : ui_container_)
 					i.uiobj->check(arg.window_handle == i.uiobj->handle());