diff --git a/modules/nixos/homeassistant/services/zigbee2mqtt/default.nix b/modules/nixos/homeassistant/services/zigbee2mqtt/default.nix
index b02e88f..e8cf952 100644
--- a/modules/nixos/homeassistant/services/zigbee2mqtt/default.nix
+++ b/modules/nixos/homeassistant/services/zigbee2mqtt/default.nix
@@ -16,6 +16,9 @@ in
         enable = true;
         listeners = [
           {
+            # Listen on all interfaces so LAN devices (e.g. openHASP) can connect
+            address = "0.0.0.0";
+            port = 1883;
             acl = [ "pattern readwrite #" ];
             omitPasswordAuth = true;
             settings.allow_anonymous = true;