# Install prefix postgresql extension

**URL:** <https://discuss.circleci.com/t/install-prefix-postgresql-extension/8316>\
**Category:** Build Environment\
**Tags:** postgresql\
**Created:** [November 28, 2016, 4:10pm UTC](https://discuss.circleci.com/t/install-prefix-postgresql-extension/8316 "2016-11-28T16:10:49Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![aeldaly](https://sea2.discourse-cdn.com/circleci/user_avatar/discuss.circleci.com/aeldaly/32/14684_2.png) [@aeldaly](https://discuss.circleci.com/u/aeldaly)\
**Post date:** [November 28, 2016, 4:10pm UTC](https://discuss.circleci.com/t/install-prefix-postgresql-extension/8316/1 "2016-11-28T16:10:49Z")

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Hi there. Our ruby on rails app’s test suite needs this extension to run. How do I install it on circle?

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**Author:** ![aeldaly](https://sea2.discourse-cdn.com/circleci/user_avatar/discuss.circleci.com/aeldaly/32/14684_2.png) [@aeldaly](https://discuss.circleci.com/u/aeldaly)\
**Post date:** [November 28, 2016, 5:06pm UTC](https://discuss.circleci.com/t/install-prefix-postgresql-extension/8316/2 "2016-11-28T17:06:29Z")

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Figured it out. If any one is looking for an answer… you could do it in 2 ways:

1. Inside the configuration of your project via the web app
2. By including it in your circle.yml file

What I did was:

- sudo apt-get update
- sudo apt-get install postgresql-9.4-prefix

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<div class="post-metadata">

**Author:** ![system](https://global.discourse-cdn.com/circleci/original/3X/5/1/511608acda8e85906e15909b57bd0a46c1dbe291.png) [@system](https://discuss.circleci.com/u/system)\
**Post date:** [June 18, 2018, 11:38am UTC](https://discuss.circleci.com/t/install-prefix-postgresql-extension/8316/3 "2018-06-18T11:38:55Z")

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