diff --git a/instances/heimdall/configuration.nix b/instances/heimdall/configuration.nix
index 88029d6..25fba32 100644
--- a/instances/heimdall/configuration.nix
+++ b/instances/heimdall/configuration.nix
@@ -81,8 +81,7 @@ in
         port = 1883;
         users.zigbee2mqtt = {
           acl = [
-            # "pattern readwrite #"
-            "readwrite #"
+            "readwrite zigbee2mqtt/#"
           ];
           password = "zigbee2mqtt";
         };