diff --git a/ops/nixos/bvm-matrix/default.nix b/ops/nixos/bvm-matrix/default.nix
index b0c27b8ca0..a0e1013aad 100644
--- a/ops/nixos/bvm-matrix/default.nix
+++ b/ops/nixos/bvm-matrix/default.nix
@@ -181,7 +181,7 @@
 
   my.vault.acmeCertificates."matrix.zxcvbnm.ninja" = {
     group = "matrixcert";
-    hostnames = [ "matrix.zxcvbnm.ninja" "element.zxcvbnm.ninja" "zxcvbnm.ninja" ];
+    hostnames = [ "matrix.zxcvbnm.ninja" "element.zxcvbnm.ninja" "zxcvbnm.ninja" "turn.zxcvbnm.ninja" ];
     nginxVirtualHosts = [ "zxcvbnm.ninja" "element.zxcvbnm.ninja" "matrix.zxcvbnm.ninja" ];
   };