diff --git a/birbnetes_iot_platform_raspberry/led_stuff.py b/birbnetes_iot_platform_raspberry/led_stuff.py
index c6e56e1..98bba17 100644
--- a/birbnetes_iot_platform_raspberry/led_stuff.py
+++ b/birbnetes_iot_platform_raspberry/led_stuff.py
@@ -68,10 +68,10 @@ class BlinkenLights(Thread):
 
         while self._active:
             time.sleep(0.2)
-            for name, led in self._led_controllers:
+            for name, led in self._led_controllers.items():
                 led.clk()
 
-        for name, led in self._led_controllers:
+        for name, led in self._led_controllers.items():
             led.cleanup()
 
     def enqueue_pattern(self, target: str, pattern: list):