# How to down migrate an extension?

**URL:** <https://www.ruby-forum.com/t/how-to-down-migrate-an-extension/200476>\
**Category:** Radiant CMS\
**Created:** [December 13, 2010, 8:21am UTC](https://www.ruby-forum.com/t/how-to-down-migrate-an-extension/200476 "2010-12-13T08:21:23Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Dobai-Pataky\_BSSSSl](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/77aa72/32.png) [@Dobai-Pataky\_BSSSSl](https://www.ruby-forum.com/u/Dobai-Pataky_BSSSSl)\
**Post date:** [December 13, 2010, 8:21am UTC](https://www.ruby-forum.com/t/how-to-down-migrate-an-extension/200476/1 "2010-12-13T08:21:23Z")

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Hi all,

New to Radiant and lovin’ it so far. But I’ve been trying to find out  
how to down-migrate an extension migration so I can remove the  
extension.

Specifically, I’m trying to migrate a project from sns to sheets, so I’m  
needing to undo the db from sns.

Thank for any help – Kevin

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**Author:** ![kturner](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/c2a13f/32.png) [@kturner](https://www.ruby-forum.com/u/kturner)\
**Post date:** [December 13, 2010, 11:48am UTC](https://www.ruby-forum.com/t/how-to-down-migrate-an-extension/200476/2 "2010-12-13T11:48:16Z")

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try this  
Rake radiant:extensions:sns:migrate VERSION=0

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**Author:** ![kturner](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/c2a13f/32.png) [@kturner](https://www.ruby-forum.com/u/kturner)\
**Post date:** [December 13, 2010, 4:42pm UTC](https://www.ruby-forum.com/t/how-to-down-migrate-an-extension/200476/3 "2010-12-13T16:42:13Z")

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Of course! I keep forgetting that Radiant is a Rails application.  
Thanks, that works perfectly!