diff --git a/_config.yml b/_config.yml
index 65f4027..90a21e3 100644
--- a/_config.yml
+++ b/_config.yml
@@ -29,7 +29,7 @@ baseurl: "" # the subpath of your site, e.g. /blog
 
 url: "" # the base hostname & protocol for your site, e.g. http://example.com
 
-# twitter_username: jekyllrb
+twitter_username: zarr_dev
 github_username:  zarr-developers
 gitter_url: https://gitter.im/zarr-developers/community