diff --git a/_config.yml b/_config.yml
index 0fd7e7a..468ffcb 100644
--- a/_config.yml
+++ b/_config.yml
@@ -316,7 +316,7 @@ twitter:
 social:
   name:                HPC Social
   github:              hpc-social
-  mastodon:            hpc-social
+  mastodon:            https://mast.hpc.social/about
   links:
     - https://twitter.com/hpc_social
     - https://github.com/hpc-social