diff --git a/lamps/LampGroup.py b/lamps/LampGroup.py
index b6425ff..1425a46 100644
--- a/lamps/LampGroup.py
+++ b/lamps/LampGroup.py
@@ -42,7 +42,7 @@ class LampGroup:
 
     def toggleRandom(self, sleepTime):
         count = random.randint(1,3)
-        random_lamps = random.choices(self.lamps, count)
+        random_lamps = random.choices(self.lamps, k=count)
         for lamp in random_lamps:
             lamp.activate()
         time.sleep(sleepTime)