diff --git a/hosts/monitoring-3/configuration.nix b/hosts/monitoring-3/configuration.nix
index d0980ee..de3e543 100644
--- a/hosts/monitoring-3/configuration.nix
+++ b/hosts/monitoring-3/configuration.nix
@@ -78,6 +78,7 @@ in {
       "www.fem.tu-ilmenau.de"
       "www.heise.de"
       "212.218.154.100" # ie10-ffm1
+      "matrix.bau-ha.us"
     ];
   };