# Concurrent Data Processing in Elixir - Should and :crypto to extra\_applications (page 52)

**URL:** <https://forum.devtalk.com/t/concurrent-data-processing-in-elixir-should-and-crypto-to-extra-applications-page-52/6718>\
**Category:** PragProg Customers\
**Tags:** book-concurrent-data-processing-in-elixir, errata\
**Created:** [5 February 2021 21:30 UTC](https://forum.devtalk.com/t/concurrent-data-processing-in-elixir-should-and-crypto-to-extra-applications-page-52/6718 "2021-02-05T21:30:56Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mratliff](https://forum.devtalk.com/user_avatar/forum.devtalk.com/mratliff/32/2332_2.png) [@mratliff](https://forum.devtalk.com/u/mratliff)\
**Post date:** [5 February 2021 21:30 UTC](https://forum.devtalk.com/t/concurrent-data-processing-in-elixir-should-and-crypto-to-extra-applications-page-52/6718/1 "2021-02-05T21:30:56Z")

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Not a big deal but might want to mention that you should add :crypto to the extra\_applications portion of mix like so:

def application do  
[  
extra\_applications: [:logger, :crypto],  
mod: {Jobber.Application, []}  
]  
end