diff --git a/physicals-mermaid.md b/physicals-mermaid.md
index fa7f166..f4a9910 100644
--- a/physicals-mermaid.md
+++ b/physicals-mermaid.md
@@ -1,3 +1,4 @@
+```mermaid
 flowchart TD
     oldcluster[old cluster]-->i9worker
     taloscluster-->worker[worker - talos-6u4-9rv]
@@ -21,3 +22,4 @@ flowchart TD
     hpspinny-->disk0[4tib-sda]
     hpspinny-->disk1[4tib-sdc]
     hpspinny-->disk2[10tib-sdd]
+```
\ No newline at end of file