diff --git a/libs/ui/include/psemek/ui/checkbox.hpp b/libs/ui/include/psemek/ui/checkbox.hpp
index bbacc450..1a56cf71 100644
--- a/libs/ui/include/psemek/ui/checkbox.hpp
+++ b/libs/ui/include/psemek/ui/checkbox.hpp
@@ -14,7 +14,7 @@ namespace psemek::ui
 		bool on_event(mouse_click const & e) override;
 
 		bool value() const { return value_; }
-		void set_value(bool value) { value_ = value; }
+		void set_value(bool value, bool signal = true);
 
 		using on_value_changed_callback = std::function<void(bool)>;
 
@@ -40,6 +40,8 @@ namespace psemek::ui
 		bool value_ = false;
 
 		on_value_changed_callback callback_;
+
+		void post_value_changed();
 	};
 
 }
diff --git a/libs/ui/source/checkbox.cpp b/libs/ui/source/checkbox.cpp
index cfe01b72..7874623e 100644
--- a/libs/ui/source/checkbox.cpp
+++ b/libs/ui/source/checkbox.cpp
@@ -41,8 +41,7 @@ namespace psemek::ui
 			{
 				state_ = state_t::mousedown;
 				value_ = !value_;
-				if (callback_)
-					post([cb = callback_, v = value_]{ cb(v); });
+				post_value_changed();
 				on_state_changed(state_t::mouseover);
 				return true;
 			}
@@ -60,6 +59,13 @@ namespace psemek::ui
 		return false;
 	}
 
+	void checkbox::set_value(bool value, bool signal)
+	{
+		value_ = value;
+		if (signal)
+			post_value_changed();
+	}
+
 	void checkbox::on_state_changed(state_t old)
 	{
 		if (state() == state_t::mousedown || old == state_t::mousedown)
@@ -68,4 +74,10 @@ namespace psemek::ui
 		}
 	}
 
+	void checkbox::post_value_changed()
+	{
+		if (callback_)
+			post([cb = callback_, v = value_]{ cb(v); });
+	}
+
 }