diff --git a/modules/homelab/services/smarthome/zigbee2mqtt/default.nix b/modules/homelab/services/smarthome/zigbee2mqtt/default.nix
index 8e97f58..19735bb 100644
--- a/modules/homelab/services/smarthome/zigbee2mqtt/default.nix
+++ b/modules/homelab/services/smarthome/zigbee2mqtt/default.nix
@@ -63,8 +63,8 @@ in
             base_topic = "zigbee2mqtt";
             client_id = "zigbee2mqtt";
             server = "mqtt://localhost:1883";
-            user = "${sec."mosquitto_passwd.yaml".path} user";
-            password = "${sec."mosquitto_passwd.yaml".path} password";
+            user = "${toString sec."mosquitto_passwd.yaml".path} user";
+            password = "${toString sec."mosquitto_passwd.yaml".path} password";
             keepalive = 20;
           };
           serial = {