diff --git a/src/redis-benchmark.c b/src/redis-benchmark.c
index 5aec3c93..23a02d54 100644
--- a/src/redis-benchmark.c
+++ b/src/redis-benchmark.c
@@ -1355,6 +1355,8 @@ usage:
 " -n <requests>      Total number of requests (default 100000)\n"
 " -d <size>          Data size of SET/GET value in bytes (default 3)\n"
 " --dbnum <db>       SELECT the specified db number (default 0)\n"
+" --threads <num>    Enable multi-thread mode.\n"
+" --cluster          Enable cluster mode.\n"
 " -k <boolean>       1=keep alive 0=reconnect (default 1)\n"
 " -r <keyspacelen>   Use random keys for SET/GET/INCR, random values for SADD\n"
 "  Using this option the benchmark will expand the string __rand_int__\n"