diff --git a/redis.conf b/redis.conf
index 5baeae65f..01a2d801f 100644
--- a/redis.conf
+++ b/redis.conf
@@ -737,6 +737,14 @@ replica-priority 100
 # For more information about ACL configuration please refer to
 # the Redis web site at https://redis.io/topics/acl
 
+# ACL LOG
+#
+# The ACL Log tracks failed commands and authentication events associated
+# with ACLs. The ACL Log is useful to troubleshoot failed commands blocked 
+# by ACLs. The ACL Log is stored in memory. You can reclaim memory with 
+# ACL LOG RESET. Define the maximum entry length of the ACL Log below.
+acllog-max-len 128
+
 # Using an external ACL file
 #
 # Instead of configuring users here in this file, it is possible to use