# Ruby SyntaxError - unexpected tCONSTANT

**URL:** <https://discuss.elastic.co/t/ruby-syntaxerror-unexpected-tconstant/168676>\
**Category:** Logstash\
**Created:** [February 16, 2019, 9:48am UTC](https://discuss.elastic.co/t/ruby-syntaxerror-unexpected-tconstant/168676 "2019-02-16T09:48:34Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ssasporta](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ssasporta/32/13695_2.png) [@ssasporta](https://discuss.elastic.co/u/ssasporta)\
**Post date:** [February 16, 2019, 9:48am UTC](https://discuss.elastic.co/t/ruby-syntaxerror-unexpected-tconstant/168676/1 "2019-02-16T09:48:34Z")

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Hi,

**That is my error I am getting when Logstash start:**

error: (SyntaxError) (ruby filter code):15: syntax error, unexpected tCONSTANT  
event.set('NonPrimeTimeUnavailabilityinPrecentage, ((event.get('NonPrimeTimeUnavailabilityinSeconds').to\_f \* 100 ) / ( 365 \* 15 \* 3600 )))

**The source is:**

```
                  event.set('BusinessTimeUnavailabilityPrecentage', ((event.get('BusinessTimeUnavailabilityinSeconds').to_f * 100 ) / ( 365 * 15 * 3600 )))
                  event.set('NonPrimeTimeUnavailabilityinPrecentage, ((event.get('NonPrimeTimeUnavailabilityinSeconds').to_f * 100 ) / ( 365 * 15 * 3600 )))

```

What is wrong here?

Regards,  
Sharon.

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<div class="post-metadata">

**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\
**Post date:** [February 16, 2019, 12:26pm UTC](https://discuss.elastic.co/t/ruby-syntaxerror-unexpected-tconstant/168676/2 "2019-02-16T12:26:53Z")

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You are missing the closing quote around NonPrimeTimeUnavailabilityinPrecentage.

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [March 16, 2019, 12:38pm UTC](https://discuss.elastic.co/t/ruby-syntaxerror-unexpected-tconstant/168676/3 "2019-03-16T12:38:12Z")

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