diff --git a/hosts/public-access-proxy/default.nix b/hosts/public-access-proxy/default.nix
index b5ff3d01..715bb203 100644
--- a/hosts/public-access-proxy/default.nix
+++ b/hosts/public-access-proxy/default.nix
@@ -90,6 +90,9 @@
     } {
       hostNames = [ "matemat.hq.c3d2.de" ];
       proxyTo.host = hostRegistry.matemat.ip4;
+    } {
+      hostNames = [ "matrix.c3d2.de" ];
+      proxyTo.host = hostRegistry.matrix.ip4;
     } {
       hostNames = [ "mobilizon.c3d2.de" ];
       proxyTo.host = hostRegistry.mobilizon.ip4;