diff --git a/bench/templates/redis.conf b/bench/templates/redis.conf
index ebc7d4ca..b8122949 100644
--- a/bench/templates/redis.conf
+++ b/bench/templates/redis.conf
@@ -69,5 +69,6 @@ notify-keyspace-events ""
 rdbchecksum yes
 slave-read-only yes
 stop-writes-on-bgsave-error yes
+tcp-backlog 511
 tcp-keepalive 0
 {% endif %}