diff --git a/kafka/producer/kafka.py b/kafka/producer/kafka.py
index d24236aa4..5e2fb6900 100644
--- a/kafka/producer/kafka.py
+++ b/kafka/producer/kafka.py
@@ -295,7 +295,7 @@ class KafkaProducer(object):
         'sock_chunk_bytes': 4096,  # undocumented experimental option
         'sock_chunk_buffer_count': 1000,  # undocumented experimental option
         'reconnect_backoff_ms': 50,
-        'reconnect_backoff_max': 1000,
+        'reconnect_backoff_max_ms': 1000,
         'max_in_flight_requests_per_connection': 5,
         'security_protocol': 'PLAINTEXT',
         'ssl_context': None,