diff --git a/docs/cluster_guides/uppmax_cluster.md b/docs/cluster_guides/uppmax_cluster.md
index 680e00b9e..3c1ccc7e2 100644
--- a/docs/cluster_guides/uppmax_cluster.md
+++ b/docs/cluster_guides/uppmax_cluster.md
@@ -34,9 +34,9 @@ UPPMAX has, among others, the following clusters:
   In the near future, will be replaced by [Pelle](pelle.md)
 - [Snowy](snowy.md): regular data, long runs and GPU:s
 
-<div align="center">
+<center>
 [System usage](https://docs.uppmax.uu.se/cluster_guides/system_usage/system_usage.html){ .md-button .md-button--primary }
-</div>
+</centre>
 
 Another cluster UPPMAX is involved in: