diff --git a/examples/demo.py b/examples/demo.py
index b911592..6093875 100644
--- a/examples/demo.py
+++ b/examples/demo.py
@@ -14,7 +14,7 @@ def demo_led_colors(movehub):
     # LED colors demo
     log.info("LED colors demo")
     movehub.color_distance_sensor.subscribe(lambda x, y: None)
-    for color in COLORS.keys()[1:] + [COLOR_BLACK]:
+    for color in list(COLORS.keys())[1:] + [COLOR_BLACK]:
         log.info("Setting LED color to: %s", COLORS[color])
         movehub.led.set_color(color)
         sleep(1)