diff --git a/redis.go b/redis.go
index 17b61a2..52b2725 100644
--- a/redis.go
+++ b/redis.go
@@ -22,30 +22,35 @@ func (rc RedisCmd) MarshalBinary() ([]byte, error) {
 }
 
 const (
-	RedisCommandExists       RedisCmd = "EXISTS"
-	RedisCommandTTL          RedisCmd = "TTL"
-	RedisCommandSet          RedisCmd = "SET"
-	RedisCommandDel          RedisCmd = "DEL"
-	RedisCommandGet          RedisCmd = "GET"
-	RedisCommandHget         RedisCmd = "HGET"
-	RedisCommandHset         RedisCmd = "HSET"
-	RedisCommandHdel         RedisCmd = "HDEL"
-	RedisCommandMGet         RedisCmd = "MGET"
-	RedisCommandMSet         RedisCmd = "MSET"
-	RedisCommandLpush        RedisCmd = "LPUSH"
-	RedisCommandLpop         RedisCmd = "LPOP"
-	RedisCommandRpush        RedisCmd = "RPUSH"
-	RedisCommandRpop         RedisCmd = "RPOP"
-	RedisCommandBrpop        RedisCmd = "BRPOP"
-	RedisCommandBlpop        RedisCmd = "BLPOP"
-	RedisCommandSadd         RedisCmd = "SADD"
-	RedisCommandSunionstore  RedisCmd = "SUNIONSTORE"
-	RedisCommandZadd         RedisCmd = "ZADD"
-	RedisCommandZincrby      RedisCmd = "ZINCRBY"
-	RedisCommandPsubScribe   RedisCmd = "PSUBSCRIBE"
-	RedisCommandPubsub       RedisCmd = "PUBSUB"
-	RedisCommandPublish      RedisCmd = "PUBLISH"
-	RedisCommandPunsubScribe RedisCmd = "PUNSUBSCRIBE"
-	RedisCommandSubscribe    RedisCmd = "SUBSCRIBE"
-	RedisCommandUnsubscribe  RedisCmd = "UNSUBSCRIBE"
+	RedisCommandExists           RedisCmd = "EXISTS"
+	RedisCommandTTL              RedisCmd = "TTL"
+	RedisCommandSet              RedisCmd = "SET"
+	RedisCommandDel              RedisCmd = "DEL"
+	RedisCommandGet              RedisCmd = "GET"
+	RedisCommandHget             RedisCmd = "HGET"
+	RedisCommandHset             RedisCmd = "HSET"
+	RedisCommandHdel             RedisCmd = "HDEL"
+	RedisCommandMGet             RedisCmd = "MGET"
+	RedisCommandMSet             RedisCmd = "MSET"
+	RedisCommandLpush            RedisCmd = "LPUSH"
+	RedisCommandLpop             RedisCmd = "LPOP"
+	RedisCommandRpush            RedisCmd = "RPUSH"
+	RedisCommandRpop             RedisCmd = "RPOP"
+	RedisCommandBrpop            RedisCmd = "BRPOP"
+	RedisCommandBlpop            RedisCmd = "BLPOP"
+	RedisCommandSadd             RedisCmd = "SADD"
+	RedisCommandSunionstore      RedisCmd = "SUNIONSTORE"
+	RedisCommandZadd             RedisCmd = "ZADD"
+	RedisCommandZincrby          RedisCmd = "ZINCRBY"
+	RedisCommandPsubScribe       RedisCmd = "PSUBSCRIBE"
+	RedisCommandPubsub           RedisCmd = "PUBSUB"
+	RedisCommandPublish          RedisCmd = "PUBLISH"
+	RedisCommandPunsubScribe     RedisCmd = "PUNSUBSCRIBE"
+	RedisCommandSubscribe        RedisCmd = "SUBSCRIBE"
+	RedisCommandUnsubscribe      RedisCmd = "UNSUBSCRIBE"
+	RedisCommandZrangeByScore    RedisCmd = "ZRANGEByScore"
+	RedisCommandZRemRangeByScore RedisCmd = "ZRemRangeByScore"
+	RedisCommandDecr             RedisCmd = "DECR"
+	RedisCommandIncr             RedisCmd = "INCR"
+	RedisCommandXAdd             RedisCmd = "XADD"
 )