No feature for name [mybackup] + Snapshot + ElasticSearch

Hello everyone,
I'm trying achieve a backup for my documents using [this] (https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-snapshots.html). Now, I successfully register the filesystem for backup

$ curl -XPUT 'http://localhost:9200/_snapshot/my_backup' -d '{
"type": "fs",
"settings": {
"location": "my_backup",
"compress": true
}
}'
{acknowledge: "true"}

But upon query for the backup I found this.

curl -XGET 'http://localhost:9200/_snaphost/mybackup?pretty'
{
"error" : {
"root_cause" : [ {
"type" : "illegal_argument_exception",
"reason" : "No feature for name [mybackup]"
} ],
"type" : "illegal_argument_exception",
"reason" : "No feature for name [mybackup]"
},
"status" : 400
}

Now, I'm trying to understand what does that error means. What am I suppose to change.

Any thing that I have done wrong above.

Sounds like a type: _snaphost vs _snapshot