# If condition statement in Logstash
**URL:** https://discuss.elastic.co/t/if-condition-statement-in-logstash/117511
**Category:** Logstash
**Created:** [January 29, 2018, 6:33pm UTC](https://discuss.elastic.co/t/if-condition-statement-in-logstash/117511 "2018-01-29T18:33:46Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@rpendela](https://discuss.elastic.co/u/rpendela)
#### Post date: [January 29, 2018, 6:33pm UTC](https://discuss.elastic.co/t/if-condition-statement-in-logstash/117511/1 "2018-01-29T18:33:47Z")
Continuing the discussion from [Logstash or condition in if statement](https://discuss.elastic.co/t/logstash-or-condition-in-if-statement/70403/2):
@magnusbaeck, I have a **DeviceName** filed in my logs and I am trying to add a tag based on below condition but not seeing any tags added to the logs
```
` if [DeviceName] == "%austinFW1" or [DeviceName] == "%corpFW1" {
mutate {
add_tag => ["Austin-Firewalls"]
}
}`
```
What might be the cause?
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [February 26, 2018, 6:33pm UTC](https://discuss.elastic.co/t/if-condition-statement-in-logstash/117511/2 "2018-02-26T18:33:47Z")
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