diff --git a/machines/hippocampus/servers/public/matrix/rtc.nix b/machines/hippocampus/servers/public/matrix/rtc.nix
index 6f4d9cb..5b0656a 100644
--- a/machines/hippocampus/servers/public/matrix/rtc.nix
+++ b/machines/hippocampus/servers/public/matrix/rtc.nix
@@ -21,7 +21,9 @@
     redis = { createLocally = false; };
     settings = {
       port = 7375;
+      bind_addresses = [""];
       rtc = {
+        port = 7376;
         port_range_end   = 50100;
         port_range_start = 50200;
         use_external_ip  = true;