diff --git a/docs/images/composed_devices.dot b/docs/images/composed_devices.dot
index 0459ede..fa43d3b 100644
--- a/docs/images/composed_devices.dot
+++ b/docs/images/composed_devices.dot
@@ -8,6 +8,8 @@ digraph classes {
     RGBLED->PWMLED;
     LEDBoard->LED;
     LEDBoard->PWMLED;
+    LEDBarGraph->LED;
+    LEDBarGraph->PWMLED;
 
     TrafficLightsBuzzer->TrafficLights;
     TrafficLightsBuzzer->Buzzer;