diff --git a/kafka/coordinator/consumer.py b/kafka/coordinator/consumer.py
index 25da9fe1b..52299c79e 100644
--- a/kafka/coordinator/consumer.py
+++ b/kafka/coordinator/consumer.py
@@ -66,7 +66,7 @@ def __init__(self, client, subscription, **configs):
                 a commit request completes.
             assignors (list): List of objects to use to distribute partition
                 ownership amongst consumer instances when group management is
-                used. Default: [RangePartitionAssignor, RoundRobinPartitionAssignor]
+                used. Default: [RangePartitionAssignor, RoundRobinPartitionAssignor, StickyPartitionAssignor]
             heartbeat_interval_ms (int): The expected time in milliseconds
                 between heartbeats to the consumer coordinator when using
                 Kafka's group management feature. Heartbeats are used to ensure