diff --git a/pkgs/servers/zigbee2mqtt/default.nix b/pkgs/servers/zigbee2mqtt/default.nix
index 3f66afae901a..3de413f95019 100644
--- a/pkgs/servers/zigbee2mqtt/default.nix
+++ b/pkgs/servers/zigbee2mqtt/default.nix
@@ -1,4 +1,4 @@
-{ pkgs, stdenv, dataDir ? "/opt/zigbee2mqtt/data", nixosTests }:
+{ pkgs, stdenv, nixosTests }:
 let
   package = (import ./node.nix { inherit pkgs; inherit (stdenv.hostPlatform) system; }).package;
 in